AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 20, 1995
                                              REGISTRATION NO. 33-
===============================================================================
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                                  ----------
                                   FORM S-3
                            REGISTRATION STATEMENT
                                    Under
                          THE SECURITIES ACT OF 1933
                                  ----------
                        ARIZONA PUBLIC SERVICE COMPANY
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

            ARIZONA                                         86-0011170     
    (STATE OF INCORPORATION)                             (I.R.S. EMPLOYER      
                                                        IDENTIFICATION NUMBER) 
                             400 North Fifth Street
                            Phoenix, Arizona 85004
                                (602) 250-1000
   (ADDRESS, INCLUDING ZIP CODE AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                 OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                                  ----------
                              MATTHEW P. FEENEY
                            Snell & Wilmer L.L.P.
                              One Arizona Center
                            Phoenix, Arizona 85073
                                (602) 382-6239
           (NAME, ADDRESS, INCLUDING ZIP CODE AND TELEPHONE NUMBER,
                  INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                                  ----------
   Approximate date of commencement of proposed sale to the public: From time to
time after the effective date of this Registration  Statement,  as determined by
market conditions and other factors.
                                   ----------
   If the only  securities  being  registered  on this  Form are  being  offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. [ ]
   If any of the securities being registered on this Form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the  Securities  Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]
   If this  Form is filed to  register  additional  securities  for an  offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  Registration  Statement  number  of the  earlier
effective registration statement for the same offering. [ ]
   If this Form is a  post-effective  amendment  filed  pursuant  to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]
   If delivery of the  prospectus  is expected to be made  pursuant to Rule 434,
please check the following box. [x] 
                                   ----------
         C A L C U L A T I O N   O F   R E G I ST R A T I O N   F E E
===============================================================================
                                          Proposed     Proposed
                                          Maximum      Maximum
                                Amount    Offering     Aggregate     Amount of
   Title of Each Class of       to be     Price        Offering    Registration
Securities to be Registered   Registered  Per Unit      Price          Fee
- -------------------------------------------------------------------------------
First Mortgage Bonds           (1)(3)       (2)        (1)(2)(3)       N/A
- -------------------------------------------------------------------------------
Debt Securities                (1)(4)       (2)        (1)(2)(4)       N/A
- -------------------------------------------------------------------------------
   Total                    $25,000,000     (2)       $25,000,000   $8,621(5)
===============================================================================
(1) In no event will the  aggregate  initial  offering  price of all  securities
    issued from time to time  pursuant  to this  Registration  Statement  exceed
    $25,000,000.  If  any  such  securities  are  issued  at an  original  issue
    discount,  then the aggregate  initial offering price as so discounted shall
    not exceed $25,000,000,  notwithstanding that the stated principal amount of
    such securities may exceed such amount.
(2) The proposed  maximum  initial  offering  price per unit will be determined,
    from time to time, by the Registrant in connection  with the issuance by the
    Registrant of the securities registered hereunder.
(3) Subject  to  Footnote  (1),   there  are  being   registered   hereunder  an
    indeterminate  principal amount of First Mortgage Bonds as may be sold, from
    time to time, by the Registrant.
(4) Subject  to  Footnote  (1),   there  are  being   registered   hereunder  an
    indeterminate  principal amount of Debt Securities as may be sold, from time
    to time, by the Registrant.
(5) Calculated  pursuant to Rule 457(o) of the rules and  regulations  under the
    Securities Act of 1933.
   Pursuant to Rule 429 of the rules and regulations under the Securities Act of
1933, this Registration Statement contains a combined prospectus relating to the
$25,000,000  principal  amount  of  securities  registered  hereby,  $25,000,000
principal  amount of  securities  registered  on  October  3, 1994  pursuant  to
Registration No. 33-55473,  and $100,000,000  principal amount of First Mortgage
Bonds registered on April 26, 1993 pursuant to Registration  No.  33-61228.  The
previously-paid filing fees associated with the referenced securities registered
under  Registration  Nos.  33-55473  and 33-61228  totalled  $8,621 and $34,483,
respectively.  
   The  Registrant  hereby  amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities Act of 1933, or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
===============================================================================

INFORMATION   CONTAINED  HEREIN  IS  SUBJECT  TO  COMPLETION  OR  AMENDMENT.   A
REGISTRATION  STATEMENT  RELATING  TO THESE  SECURITIES  HAS BEEN FILED WITH THE
SECURITIES  AND EXCHANGE  COMMISSION.  THESE  SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION  STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE  AN  OFFER  TO  SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN ANY STATE IN WHICH SUCH OFFER,  SOLICITATION  OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.


                SUBJECT TO COMPLETION, DATED NOVEMBER 20, 1995

                                 $150,000,000

                        ARIZONA PUBLIC SERVICE COMPANY

                             FIRST MORTGAGE BONDS
                               DEBT SECURITIES

                                  ----------

    Arizona Public Service Company (the "Company")  intends from time to time to
issue up to $150,000,000 aggregate principal amount of its securities,  at least
$100,000,000  of which will consist of First  Mortgage Bonds of the Company (the
"New Bonds"), and the remaining  $50,000,000 of which will consist of either New
Bonds or other debt  securities of the Company (the "Debt  Securities"),  or any
combination  thereof,  in one or  more  series  at  prices  and on  terms  to be
determined  at the time of sale.  The New Bonds and the Debt  Securities  may be
collectively referred to in this Prospectus as the "Securities".

    For each issue of Securities  for which this  Prospectus is being  delivered
(the "Offered Bonds" or the "Offered Debt  Securities"  and,  collectively,  the
"Offered Securities"),  there will be an accompanying Prospectus Supplement (the
"Prospectus  Supplement") that sets forth,  without limitation and to the extent
applicable, the specific designation,  aggregate principal amount, denomination,
maturity,  premium, if any, rate of interest (which may be fixed or variable) or
method of  calculation  thereof,  time of  payment  of  interest,  any terms for
redemption,  any sinking fund provisions,  any subordination  provisions (in the
case of the Debt Securities  only), the initial public offering price, the names
of any underwriters or agents, the principal amounts, if any, to be purchased by
the underwriters, the compensation of such underwriters or agents, and any other
special terms of the Offered Securities.  The Prospectus  Supplement relating to
any  series of  Offered  Securities  will also  contain  information  concerning
certain United States federal  income tax  considerations,  if applicable to the
Offered Securities.

                                   ----------

 THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
    EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
       SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
        COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
          PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                              CRIMINAL OFFENSE.
         
                         ----------

                 The date of this Prospectus is       , 1995.


                            AVAILABLE INFORMATION

    Arizona   Public  Service   Company  (the   "Company")  is  subject  to  the
informational  requirements  of the Securities  Exchange Act of 1934, as amended
(the "1934 Act"), and in accordance  therewith files reports,  proxy statements,
and  other  information  with  the  Securities  and  Exchange   Commission  (the
"Commission").  Such reports,  proxy  statements,  and other  information can be
obtained at prescribed rates from the Public Reference Section of the Commission
or may be inspected and copied at the public reference facilities  maintained by
the Commission at 450 Fifth Street, N.W., Room 1024, Washington,  D.C. 20549 and
at certain of its regional  offices  located at 500 West Madison  Street,  Suite
1400,  Chicago,  Illinois 60661;  and Seven World Trade Center,  Suite 1300, New
York,  New York 10048.  Certain  securities of the Company are listed on the New
York Stock Exchange.  Reports, proxy materials, and other information concerning
the Company can be inspected at the office of this  exchange at 20 Broad Street,
7th Floor, New York, New York 10005.

                                   ----------

               INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    The following documents  previously filed with the Commission by the Company
(File No. 1-4473) are incorporated by reference in this Prospectus:

    1. The  Company's  Form 10-K Report for the fiscal year ended  December  31,
1994 (the "1994 10-K Report");

    2. The Company's  Form 10-Q Reports for the fiscal  quarters ended March 31,
June 30, and September 30, 1995 (the "September 10-Q Report"); and

    3. The Company's Form 8-K Reports, dated January 1 and September 29, 1995.

    All documents filed by the Company pursuant to Sections 13(a), 13(c), 14, or
15(d) of the 1934 Act after the filing  date of the  September  10-Q  Report and
prior to the termination of the offering of the securities  offered hereby shall
be deemed to be  incorporated  by reference in this  Prospectus and to be a part
hereof from the date of filing of such documents.

    Any statement contained in a document incorporated by reference herein shall
be deemed to be modified or  superseded  for purposes of this  Prospectus to the
extent  that a statement  contained  herein or in any other  subsequently  filed
document which is also  incorporated by reference  herein modifies or supersedes
such  statement.  Any statement so modified or  superseded  shall not be deemed,
except as modified or superseded, to constitute a part of this Prospectus.

    The Company  will  provide  without  charge to each  person,  including  any
beneficial owner, to whom a copy of this Prospectus is delivered,  upon the oral
or  written  request  of  such  person,  a copy  of any or all of the  documents
referred to above which have been or may be  incorporated  in this Prospectus by
reference, other than exhibits to such documents. Request for such copies should
be directed to Arizona Public Service Company, Office of the Secretary,  Station
9068, P.O. Box 53999, Phoenix, Arizona 85072-3999, (602) 250-3252.


                             SELECTED INFORMATION

    The  following  material is  qualified  in its  entirety by reference to the
detailed information and financial statements  incorporated by reference in this
Prospectus.

                                  THE OFFERING

Securities Offered .......................  Up to $150,000,000 of First Mortgage
                                            Bonds  or  up  to   $100,000,000  of
                                            First  Mortgage   Bonds  and  up  to
                                            $50,000,000  of any  combination  of
                                            First   Mortgage   Bonds   and  Debt
                                            Securities.
Application of Proceeds ..................  Except as otherwise described in the
                                            Prospectus   Supplement,  the    net
                                            proceeds  of  the Offered Securities
                                            will   be   applied primarily to the
                                            redemption,  repurchase,  repayment,
                                            or    retirement    of   outstanding
                                            indebtedness, and temporary  invest-
                                            ment pending such application.

                                  THE COMPANY

Business .................................  Electric  utility  servicing approx-
                                            imately 681,000 customers in an area
                                            that  includes  all or part of 11 of
                                            Arizona's 15 counties.
Generating Fuel Mix (estimated for the
 twelve months ended September 30,
 1995)....................................  Coal--54.1%;  Nuclear--40.1%;  Gas--
                                            5.7%;  Other--0.1%.


FINANCIAL DATA (THOUSANDS OF DOLLARS):
                                                             TWELVE MONTHS ENDED
                                          ------------------------------------------------------------
                                                                                DECEMBER 31,
                                                              ----------------------------------------
                                          SEPTEMBER 30,1995(1)     1994         1993          1992
                                          ------------------- ------------ ------------- -------------
                                                                              
Electric Operating Revenues  .....            $1,608,308       $1,626,168   $ 1,602,413   $ 1,587,582
                                              ===========      ============ ============= =============
Net Income .......................            $  242,529       $  243,486   $   250,386   $   246,805
                                              ===========      ============ ============= =============
Ratio of Earnings to Fixed Charges                  2.82             2.96          2.99          2.73



CAPITALIZATION DATA (THOUSANDS OF DOLLARS):
                                                                                     AS ADJUSTED(2)
                                                          AS OF               -------------------------
                                                    SEPTEMBER 30, 1995          AMOUNT     PERCENTAGE
                                                    ------------------        ------------ ------------
                                                                                      
Long-Term Debt (excluding current maturities)          $2,153,116              $2,132,616    52.6%
Redeemable Preferred Stock ...................             75,000                  75,000     1.9
Non-Redeemable Preferred Stock ...............            193,561                 193,561     4.8
Common Stock Equity ..........................          1,648,886               1,648,886    40.7
                                                    ------------------        ------------ ------------
Total Capitalization .........................         $4,070,563              $4,050,063   100.0%
                                                    ==================        ============ ============
- ----------
(1) Financial  data as of and for the twelve months ended  September 30, 1995 is
    unaudited  but, in the judgment of the  Company's  management,  contains all
    necessary  adjustments for a fair presentation of the financial  position of
    the Company on such date and the results of operations for such period.
(2) For the Company's repurchase and incurrence of approximately $24 million and
    $4 million,  respectively,  of  long-term  debt.  It is assumed that the net
    proceeds  from the issuance of the Offered  Securities  will be used for the
    redemption,  repurchase,  repayment,  or retirement  of a similar  amount of
    outstanding long-term debt.



                                 THE COMPANY

    The  Company  was  incorporated  in 1920  under the laws of  Arizona  and is
principally  engaged  in  providing  electricity  in the State of  Arizona.  The
principal  executive  offices of the  Company  are  located  at 400 North  Fifth
Street, Phoenix, Arizona 85004 and its telephone number is (602) 250-1000.

                           APPLICATION OF PROCEEDS

    Except as otherwise described in the Prospectus Supplement, the net proceeds
of  the  Offered  Securities  will  be  applied  primarily  to  the  redemption,
repurchase,  repayment, or retirement of outstanding indebtedness.  Any proceeds
not  immediately so applied when received may be invested  temporarily,  pending
such application, in United States government or agency obligations,  commercial
paper, bank certificates of deposit, or repurchase agreements  collateralized by
United States government or agency obligations, or will be deposited with banks.

                               EARNINGS RATIOS

    The following table sets forth the Company's historical ratio of earnings to
fixed charges for each of the indicated periods:

                               TWELVE MONTHS ENDED
- --------------------------------------------------------------------------------
                                               DECEMBER 31,
 SEPTEMBER 30,               ---------------------------------------------------
      1995                    1994        1993        1992        1991     1990
- ---------------              ------      ------      ------      ------   ------
      2.82                    2.96        2.99        2.73         (1)     2.05

- ----------
(1) A write-off  resulting from a December 1991 Arizona  Corporation  Commission
    ("ACC") order  settling the Company's  then-pending  rate case resulted in a
    negative coverage ratio and an earnings coverage deficiency of approximately
    $317 million for the twelve  months ended  December 31, 1991.  Excluding the
    effects of the  write-off,  the coverage  ratio would have been 2.11 for the
    same period.

    For the purposes of these computations, "earnings" are defined as the sum of
pre-tax  income plus fixed charges of the Company and its  subsidiaries;  "fixed
charges"  consist of interest on debt,  amortization of debt discount,  premium,
and expense and an estimated interest factor in rentals.

                           DESCRIPTION OF NEW BONDS

GENERAL

    The New Bonds may be issued in one or more new series under the Mortgage and
Deed of Trust  dated as of July 1, 1946  between the Company and The Bank of New
York, as successor  Trustee ("Bond  Trustee"),  which as heretofore  amended and
supplemented is herein referred to as the "Mortgage," and which is to be further
amended  and  supplemented  by  appropriate   Supplemental   Indentures   ("Bond
Supplemental Indentures"). The following summary does not purport to be complete
and is subject in all  respects to the  provisions  of, and is  qualified in its
entirety by reference to, the Mortgage, the New Bonds, and the Bond Supplemental
Indentures,  the forms of which are filed,  or will be filed, as exhibits to the
registration   statement  of  which  this  Prospectus  forms  a  part.  Whenever
particular  provisions or defined terms in such documents are referred to herein
or in a Prospectus Supplement, such provisions or defined terms are incorporated
by reference herein or therein, as the case may be.

    Reference is made to the  Prospectus  Supplement  relating to any particular
issue of Offered Bonds for the  following  terms:  (1) the  aggregate  principal
amount of the Offered  Bonds;  (2) the date on which such Offered  Bonds mature;
(3) the rate per annum at which such Offered Bonds will bear  interest;  (4) the
times at which such interest will be payable;  (5) the date, if any, after which
such  Offered  Bonds  may be  redeemed  at the  option  of the  Company  and the
redemption  price;  (6)  whether any of such  Offered  Bonds will be issuable in
whole or in part in the form of one or more  Global  Securities  and, if so, the
Depositaries for such Global Securities, the form of any legend or legends to be
borne by any such Global Security,  and any  circumstances  under which any such
Global  Security  may be  exchanged  in  whole  or in part  for  Offered  Bonds,
registered  in the names of persons  other than the  Depositary  for such Global
Security or its nominee; and (7) any other special terms.  Interest will be paid
to the person in whose name the  Offered  Bonds are  registered  at the close of
business on the record date, as established in the Bond  Supplemental  Indenture
relating  thereto,  preceding the interest payment date in respect thereof.  The
New  Bonds  will be  issued  as fully  registered  bonds,  without  coupons,  in
denominations  of  $1,000  and  multiples   thereof.   The  New  Bonds  will  be
transferable  at any time without any service or other charge,  except  transfer
taxes and other governmental charges, if any.

    Except as otherwise described under the heading "Description of New Bonds --
Issuance of Additional  Bonds" or in the  Prospectus  Supplement,  the covenants
contained in the Mortgage and the New Bonds would not afford  holders of the New
Bonds protection in the event of a  highly-leveraged  transaction  involving the
Company.

REDEMPTION

    The Offered Bonds are redeemable as set forth in the  Prospectus  Supplement
relating thereto and, subject to any  qualifications  or variations set forth in
any such Prospectus Supplement,  are also subject to redemption, in each case at
the principal  amount of the Offered Bonds to be redeemed  together with accrued
interest  to the date  fixed  for  redemption,  (i) in whole or in part with the
proceeds from  mortgaged  property of the Company taken under eminent domain by,
or otherwise  sold to, a governmental  body or agency;  (ii) in whole or in part
with the  Proceeds of Released  Property,  including  proceeds  from the sale or
other disposition (including a sale and leaseback) of property released from the
lien of the  Mortgage  as  specified  in  section  (b) of the second to the last
paragraph under the heading  "Description of New Bonds -- Security"  below;  and
(iii) in whole, together with all other first mortgage bonds of the Company then
outstanding,  within  twelve  months of certain  mergers  or other  transactions
involving the transfer of substantially  all of the property subject to the lien
of the Mortgage,  as then amended. In addition,  after the date and at the price
set forth in the Prospectus  Supplement,  Offered Bonds may be redeemed in whole
or in part with cash deposited in the replacement fund discussed below.

SECURITY

    The New Bonds will rank pari passu, except as to any sinking fund or similar
fund provided for a particular  series,  with all bonds at any time  outstanding
under  the  Mortgage.   The  Mortgage  constitutes  a  first  mortgage  lien  on
substantially  all the  fixed  property  owned by the  Company  (which  does not
include a combined cycle plant or certain  interests in Unit 2 of the Palo Verde
Nuclear  Generating  Station being  leased),  other than  property  specifically
excepted by the Mortgage.  Such lien and the  Company's  title to certain of its
properties  are  subject to Excepted  Encumbrances,  to minor  leases,  defects,
irregularities, and deficiencies, and to the considerations discussed below with
respect to the Four Corners and Navajo Plant locations. The lien of the Mortgage
will  also  extend  to all  after-acquired  property  (other  than the  excepted
classes)  located in the  jurisdictions  in which the necessary  recordations or
filings have been  accomplished,  subject to Excepted  Encumbrances and to liens
existing  or  placed  on such  property  at the time of its  acquisition  by the
Company.

    Both the Four Corners and the Navajo  Plants are located on property held by
the plant participants under leases from the Navajo Tribe and easements from the
Secretary of the  Interior.  The leases extend from their  respective  effective
dates in 1966 and 1969 for terms of 50 years with rights of renewal for up to 25
additional  years.  The easements are for 50-year terms from the same  effective
dates.  While the Company owns the rights  conferred  upon it by the leases from
the Navajo Tribe, the Company does not make any  representation  with respect to
the Tribe's interest in the lands leased (but is not aware of any assertion of a
contesting  claim to such lands) or with  respect to the  enforceability  of the
leases against the Tribe.

     The Mortgage requires the Company to keep the property  encumbered  thereby
as an operating  system or systems in good repair and working order, but permits
the  permanent  discontinuance  or reduction in capacity of any such  properties
which, in the judgment of the Board of Directors of the Company, is desirable in
the conduct of its  business or which is ordered by a  regulatory  authority  or
which properties are to be sold or disposed of by the Company.

    When not in default under the  Mortgage,  the Company may obtain the release
from the lien thereof of (a) property that has become  unserviceable,  obsolete,
or unnecessary  for use in the Company's  operations,  provided that it replaces
such  property  with,  or  substitutes  for the  same,  an equal  value of other
property,  and (b) other  property that has been sold or otherwise  disposed of,
provided  that the Company  deposits  with the Bond  Trustee  cash in an amount,
waives  the  right  to issue  additional  bonds on the  basis of  retired  bonds
previously issued in an amount,  or utilizes as a credit net Property  Additions
acquired by the Company  within the preceding five years and having a fair value
(not more than Cost), equal to the fair value of the property to be released.

    The Bond  Trustee may,  and upon  request of the Company  shall,  cancel and
discharge  the lien of the  Mortgage  and all  indentures  supplemental  thereto
whenever all indebtedness secured by the Mortgage has been paid.

ISSUANCE OF ADDITIONAL BONDS

    Additional  bonds may be issued  under the  Mortgage in a  principal  amount
equal to (a) 60% of net Property Additions,  (b) the principal amount of certain
redeemed or retired bonds previously issued, and/or (c) deposited cash, provided
that the Company's Adjusted Net Earnings over a twelve-month period are at least
two times the annual interest on all bonds to be outstanding  under the Mortgage
after the issuance and on  indebtedness  secured by prior liens.  Exceptions  to
this  earnings  coverage  requirement  apply to  bonds  issued  on the  basis of
redeemed or retired bonds where the redeemed or retired bonds bore a higher rate
of interest and where certain other conditions are satisfied.  In addition,  the
Company's  articles  of  incorporation  allow the  Company  to issue  additional
preferred stock when certain earnings coverage  requirements are met. Exceptions
to this earnings  coverage  requirement  apply to preferred stock issued for the
purpose of redeeming or retiring other preferred stock.

    As of September 30, 1995, and adjusting for the repurchase and incurrence of
approximately $24 million and $4 million,  respectively,  of long-term debt, the
Company estimates that the Mortgage and the articles of incorporation would have
allowed  the  Company to issue up to  approximately  $1.516  billion  and $1.043
billion of additional first mortgage bonds and preferred stock, respectively.

    In  addition  to the  Mortgage  restrictions  on the  Company's  issuance of
additional  bonds,  the Company must obtain ACC approval  before  issuing equity
securities or incurring long-term debt. Existing ACC orders allow the Company to
have  approximately  $501 million in aggregate par value of preferred  stock and
approximately  $2.6 billion in principal amount of long-term debt outstanding at
any one time. The Company does not expect these provisions or  authorizations to
limit the Company's ability to meet its capital requirements.

    Property Additions, and in many instances redeemed or retired bonds, as well
as  deposited  cash,  may be used for  certain  alternative  purposes  under the
Mortgage,  including  the  release  of  property  from the lien  thereof  or the
satisfaction of sinking or replacement fund requirements.  The Mortgage contains
restrictions  on the  issuance  of bonds,  withdrawal  of cash,  or  release  of
property on the basis of property  subject to prior liens.  Property  located on
leaseholds or easements  (as, for example,  the Four Corners and Navajo  Plants)
will constitute  fundable Property Additions if the leasehold or easement has an
unexpired  term of, or the term is extendable  at the  Company's  option for, at
least 30 years after the time of funding,  or if the  property may be removed by
the Company without compensation.

REPLACEMENT FUND

     So long as any of the New Bonds are  outstanding,  the  Company is required
for each calendar  year to deposit with the Bond Trustee cash in a  formularized
amount  related to net  additions  to the  Company's  mortgaged  utility  plant;
however, the Company may satisfy all or any part of the requirement by utilizing
redeemed or retired bonds, net Property Additions, or property retirements.  For
1994, such requirement amounted to approximately $125 million. Any cash that may
be deposited by the Company pursuant to the requirement may, upon request by the
Company, be applied to the redemption or purchase of bonds and, if not withdrawn
against  Property  Additions  or retired  bonds  within five  years,  must be so
applied,  subject in each case to any  restrictions  on any such  redemption  or
purchase  as set forth in the  Prospectus  Supplement  relating  to the issue of
bonds to be redeemed or purchased. For example, the cash deposited with the Bond
Trustee by the  Company in partial  satisfaction  of its 1994  replacement  fund
requirements was used to redeem $49.15 million in aggregate  principal amount of
the Company's First Mortgage  Bonds,  10.25% Series due 2000, at their principal
amount plus accrued interest.

EVENTS OF DEFAULT

    The  following  are  defaults  under the  Mortgage:  (a)  failure to pay the
principal of any bond outstanding  under the Mortgage when due and payable;  (b)
failure to pay interest on any bond  outstanding  under the  Mortgage  within 60
days after the same is due and payable;  (c) failure to pay any  installment  of
any  fund  required  to be  applied  to the  purchase  or  redemption  of  bonds
outstanding under the Mortgage within 60 days after the same is due and payable;
(d) certain events in bankruptcy, insolvency, or reorganization; and (e) failure
to perform  any other  covenant  of the  Mortgage  continuing  for 90 days after
notice by the Bond  Trustee or holders of 15% in  principal  amount of  Eligible
bonds.  The  Mortgage  allows  the Bond  Trustee to  withhold  notice of certain
defaults,  not including any default in the payment of principal of, or interest
on,  any  bond  outstanding,  or in the  payment  of any  sinking,  improvement,
replacement,  or purchase fund installment,  if it in good faith determines that
the withholding of such notice is in the interests of the bondholders.

    The  holders of not less than a majority  in  principal  amount of  Eligible
bonds may direct the time,  method,  and place of conducting  any proceeding for
any remedy available to the Bond Trustee under the Mortgage;  provided, however,
that the  Trustee  may  decline  to  follow  any such  direction  under  certain
circumstances,  including a determination made in good faith by the Bond Trustee
that it will not be sufficiently indemnified for any expenditures, including its
own charges, in any action or proceeding so directed. The Company is required to
file with the Bond Trustee,  on or before July 1 of each year, a certificate  to
the effect that,  except as otherwise  stated therein,  the Company has complied
with  all of the  provisions  of  the  Mortgage  and  is  not  then  in  default
thereunder.

MODIFICATION OF THE MORTGAGE

    The Mortgage and the rights of bondholders  may be modified with the consent
of the  Company,  and of the Bond  Trustee if deemed  affected,  and the vote or
assent of the holders of not less than 70% in  principal  amount of the Eligible
bonds, and of not less than 70% in principal amount of the Eligible bonds of any
one or more series  (less than all)  affected by any such  modification;  except
that the  bondholders,  without the consent of the holder of each bond affected,
have no power to (a) reduce the principal  thereof,  or the premium,  if any, or
rate of interest  thereon or otherwise modify the terms of payment of principal,
premium,  or  interest,  or extend the  maturity  of any  bonds,  (b) permit the
creation  of any  lien  ranking  prior  to or on a  parity  with the lien of the
Mortgage  with  respect  to any of  the  mortgaged  property,  (c)  deprive  any
nonassenting  bondholder of a lien upon the mortgaged  property for the security
of his or her bonds,  or (d) reduce the percentage of bondholders  authorized to
effect any such modification.

GLOBAL SECURITIES

    Some or all of the New Bonds of any series may be  represented,  in whole or
in  part,  by one or more  "Global  Securities"  which  will  have an  aggregate
principal amount equal to that of the New Bonds represented thereby. Each Global
Security will be  registered  in the name of a depositary  or a nominee  thereof
identified in the applicable Prospectus Supplement,  will be deposited with such
depositary or nominee or a custodian  therefor and will bear a legend  regarding
the  restrictions on exchanges and  registration of transfer thereof referred to
below  and any  such  other  matters  as may be  provided  for  pursuant  to the
applicable Bond Supplemental Indenture.

    Notwithstanding  any  provision  of the  Mortgage or any New Bond  described
herein,  no Global  Security  may be exchanged in whole or in part for New Bonds
registered,  and no  transfer  of a Global  Security  in whole or in part may be
registered,  in the name of any person other than the depositary for such Global
Security  or any  nominee  of such  depositary  unless  (i) the  depositary  has
notified the Company  that it is  unwilling or unable to continue as  depositary
for  such  Global  Security  or has  ceased  to be  qualified  to act as such as
required by the  Mortgage,  (ii) there shall have  occurred and be  continuing a
default with  respect to the New Bonds  represented  by such Global  Security or
(iii) there shall exist such circumstances, if any, in addition to or in lieu of
those described  above as may be described in the applicable  Bond  Supplemental
Indenture and Prospectus  Supplement.  All  securities  issued in exchange for a
Global  Security or any portion  thereof will be registered in such names as the
depositary may direct.

    As long as the  depositary,  or its nominee,  is the registered  holder of a
Global  Security,  the  depositary or such nominee,  as the case may be, will be
considered  the sole owner and holder of such Global  Security and the New Bonds
represented  thereby  for all  purposes  under the New  Bonds and the  Mortgage.
Except in the  limited  circumstances  referred to above,  owners of  beneficial
interests in a Global Security will not be entitled to have such Global Security
or any New Bonds represented thereby registered in their names, will not receive
or be  entitled  to  receive  physical  delivery  of  certificated  New Bonds in
exchange therefor and will not be considered to be the owners or holders of such
Global Security or any New Bonds  represented  thereby for any purpose under the
New Bonds or the  Mortgage.  All  payments of  principal  of and any premium and
interest on a Global Security will be made to the depositary or its nominee,  as
the case may be, as the holder thereof.  The laws of some jurisdictions  require
that certain  purchasers of securities take physical delivery of such securities
in  definitive  form.  These laws may impair the ability to transfer  beneficial
interests in a Global Security.

    Ownership of  beneficial  interests in a Global  Security will be limited to
institutions   that  have   accounts   with  the   depositary   or  its  nominee
("participants")  and to  persons  that may hold  beneficial  interests  through
participants.  In  connection  with the  issuance  of any Global  Security,  the
depositary will credit, on its book-entry  registration and transfer system, the
respective  principal amounts of New Bonds represented by the Global Security to
the accounts of its participants.  Ownership of beneficial interests in a Global
Security  will be shown only on, and the transfer of those  ownership  interests
will be effected  only  through,  records  maintained  by the  depositary  (with
respect to  participants'  interests) or any such  participant  (with respect to
interests  of persons  held by such  participants  on their  behalf).  Payments,
transfers,  exchanges,  and other matters relating to beneficial  interests in a
Global Security may be subject to various policies and procedures adopted by the
depositary from time to time. None of the Company, the Bond Trustee or any agent
of the Company or the Bond Trustee will have any responsibility or liability for
any aspect of the depositary's or any participant's  records relating to, or for
payments made on account of, beneficial  interests in a Global Security,  or for
maintaining,  supervising,  or reviewing any records relating to such beneficial
interests.

    Secondary  trading in notes and debentures of corporate issuers is generally
settled in clearing- house or next-day funds. In contrast,  beneficial interests
in a Global  Security,  in some cases,  may trade in the  depositary's  same-day
funds  settlement  system,  in which case secondary  market trading  activity in
those  beneficial  interests  would be required by the  depositary  to settle in
immediately  available  funds.  There is no assurance as to the effect,  if any,
that settlement in immediately available funds would have on trading activity in
such  beneficial  interests.   Also,  settlement  for  purchases  of  beneficial
interests  in a  Global  Security  upon the  original  issuance  thereof  may be
required to be made in immediately available funds.

OTHER

    The  Mortgage  restricts  the payment of  dividends  on common  stock of the
Company under certain  conditions  which have not existed in the past and do not
currently exist.

     The Bond Trustee, security registrar and paying agent under the Mortgage is
The Bank of New York. The Company maintains normal banking arrangements with The
Bank of New York,  which  includes two  commitments  in the aggregate  principal
amount  of  approximately  $35.7  million  by The Bank of New York  pursuant  to
reimbursement  agreements  related to letters of credit  issued on behalf of the
Company in connection with issuances of pollution control bonds, the proceeds of
which were made  available  to the  Company,  none of which was  outstanding  at
September  30,  1995.  The Bank of New York also  serves as (i)  trustee for the
holders of several  issues of  pollution  control  bonds issued on behalf of the
Company,  (ii) trustee under the  Indenture  relating to the  subordinated  Debt
Securities,  (iii) investment manager for the Company's nonunion post-retirement
medical fund, and (iv) custodian of  international  fixed-income  assets for the
Company's pension plan.

                        DESCRIPTION OF DEBT SECURITIES

GENERAL

    The  Debt  Securities  may be  issued  in one or more  new  series  under an
Indenture or Indentures between the Company and (i) The Bank of New York, in the
case of  subordinated  Debt  Securities,  and (ii) Chemical Bank, in the case of
senior Debt  Securities,  or any other trustees to be named, as Trustee (each, a
"Trustee"). The following summary does not purport to be complete and is subject
in all  respects  to the  provisions  of, and is  qualified  in its  entirety by
reference to, the Indentures  pursuant to which the subordinated and senior Debt
Securities are to be issued and to the Debt  Securities,  the forms of which are
filed, or will be filed, as exhibits to the registration statement of which this
Prospectus forms a part. Whenever particular provisions or defined terms in such
documents are referred to herein or in a Prospectus Supplement,  such provisions
or terms are incorporated by reference herein or therein, as the case may be.

    The Debt Securities will be unsecured  obligations of the Company.  Separate
Indentures  will be used  for  senior  Debt  Securities  and  subordinated  Debt
Securities,  respectively,  although the  description  of the Indenture  herein,
except as specifically stated otherwise, applies to both Indentures.

     Reference is made to the Prospectus  Supplement  relating to any particular
issue of Offered Debt Securities for the following  terms: (1) the title of such
Debt  Securities;  (2) any limit on the aggregate  principal amount of such Debt
Securities  or the  series  of which  they are a part;  (3) the date or dates on
which the principal of any of such Debt Securities will be payable; (4) the rate
or rates at which any of such Debt  Securities  will bear interest,  if any, the
date or dates from which any such  interest  will accrue,  the Interest  Payment
Dates on which any such interest will be payable and the Regular Record Date for
any such interest  payable on any Interest Payment Date; (5) the place or places
where  the  principal  of and any  premium  and  interest  on any of  such  Debt
Securities will be payable; (6) the period or periods within which, the price or
prices  at  which  and the  terms  and  conditions  on  which  any of such  Debt
Securities  may be redeemed,  in whole or in part, at the option of the Company;
(7) the  obligation,  if any, of the  Company to redeem or purchase  any of such
Debt  Securities  pursuant to any sinking fund or analogous  provision or at the
option of the Holder thereof,  and the period or periods within which, the price
or  prices  at which  and the  terms  and  conditions  on which any of such Debt
Securities will be redeemed or purchased,  in whole or in part,  pursuant to any
such obligation; (8) the denominations in which any of such Debt Securities will
be issuable,  if other than  denominations  of $1,000 and any integral  multiple
thereof;  (9) if the amount of principal of or any premium or interest on any of
such Debt Securities may be determined with reference to an index or pursuant to
a formula,  the manner in which such amounts will be  determined;  (10) if other
than the currency of the United States of America, the currency,  currencies, or
currency  units in which the  principal  of or any premium or interest on any of
such  Debt  Securities  will  be  payable  and the  manner  of  determining  the
equivalent  thereof  in the  currency  of the United  States of America  for any
purpose, including for purposes of determining the principal amount deemed to be
Outstanding at any time;  (11) if the principal of or any premium or interest on
any of such Debt Securities is to be payable,  at the election of the Company or
the Holder  thereof,  in one or more  currencies,  or currency  units other than
those in which such Debt  Securities  are stated to be  payable,  the  currency,
currencies  or  currency  units in which  payment of any such amount as to which
such  election is made will be payable,  the periods  within which and the terms
and conditions  upon which such election is to be made and the amount so payable
(or the manner in which such amount is to be determined); (12) if other than the
entire principal  amount thereof,  the portion of the principal amount of any of
such Debt Securities  which will be payable upon  declaration of acceleration of
the  Maturity  thereof;  (13) if the  principal  amount  payable  at the  Stated
Maturity of any of such Debt  Securities  will not be determinable as of any one
or more dates prior to the Stated  Maturity,  the amount which will be deemed to
be such  principal  amount as of any such date for any  purpose,  including  the
principal  amount  thereof which will be due and payable upon any Maturity other
than the Stated  Maturity  or which will be deemed to be  Outstanding  as of any
such date (or,  in any such  case,  the manner in which  such  deemed  principal
amount is to be determined);  (14) if applicable,  that such Debt Securities, in
whole or any specified  part, are  defeasible  pursuant to the provisions of the
Indenture  described under "Defeasance and Covenant Defeasance -- Defeasance and
Discharge" or "Defeasance  and Covenant  Defeasance -- Covenant  Defeasance," or
under both such  captions;  (15)  whether  any of such Debt  Securities  will be
issuable in whole or in part in the form of one or more Global  Securities  and,
if so, the respective  Depositaries for such Global Securities,  the form of any
legend or legends to be borne by any such  Global  Security in addition to or in
lieu of the legend  referred to under "-- Global  Securities"  and, if different
from those described under such caption,  any circumstances under which any such
Global  Security  may be  exchanged  in whole  or in part  for  Debt  Securities
registered,  and any transfer of such Global Security in whole or in part may be
registered,  in the names of Persons other than the  Depositary  for such Global
Security or its nominee; (16) any addition to or change in the Events of Default
applicable  to any of such Debt  Securities  and any  change in the right of the
Trustee  or the  Holders  to declare  the  principal  amount of any of such Debt
Securities  due and payable;  (17) any addition to or change in the covenants in
the Indenture; and (18) any other terms of such Debt Securities not inconsistent
with the provisions of the Indenture. (Section 301).

    Debt Securities,  including Original Issue Discount Securities,  may be sold
at a substantial  discount below their principal amount.  Certain special United
States federal income tax  considerations (if any) applicable to Debt Securities
sold at an original issue discount may be described in the applicable Prospectus
Supplement.  In addition,  certain  special  United States federal income tax or
other  considerations  (if any)  applicable  to any Debt  Securities  which  are
denominated  in a currency or currency unit other than United States dollars may
be described in the applicable Prospectus Supplement.

    Except as otherwise  described in the Prospectus  Supplement,  the covenants
contained  in  the  Indenture  would  not  afford  holders  of  Debt  Securities
protection in the event of a highly-leveraged transaction involving the Company.

SUBORDINATION

    The Indenture  relating to the subordinated  Debt Securities  provides that,
unless otherwise provided in a supplemental indenture or a Board Resolution, the
Debt Securities will be subordinate and subject in right of payment to the prior
payment in full of all Senior Debt of the Company, whether outstanding as of the
date of the Indenture or thereafter incurred. (Section 1401). The balance of the
information  under  this  "Subordination"  heading  assumes  that  the  relevant
supplemental  indenture or Board Resolution results in the corresponding  series
of Debt Securities being subordinated obligations of the Company.

    No payment of principal of (including redemption and sinking fund payments),
premium, if any, or interest on, the subordinated Debt Securities may be made if
any Senior Debt is not paid when due, any  applicable  grace period with respect
to such default has ended and such  default has not been cured or waived,  or if
the  maturity  of any  Senior  Debt has been  accelerated  because of a default.
(Section 1402). Upon any distribution of assets of the Company to creditors upon
any dissolution, winding-up, liquidation or reorganization, whether voluntary or
involuntary or in bankruptcy, insolvency, receivership or other proceedings, all
principal  of, and  premium,  if any,  and interest due or to become due on, all
Senior  Debt must be paid in full before the  holders of the  subordinated  Debt
Securities are entitled to receive or retain any payment.  (Section  1403).  The
rights of the holders of the  subordinated  Debt Securities will be subordinated
to the rights of the holders of Senior Debt to receive payments or distributions
applicable  to Senior Debt until all amounts  owing on the Debt  Securities  are
paid in full. (Section 1404).

    The term  "Senior  Debt"  shall  mean the  principal  of,  premium,  if any,
interest on and any other payment due pursuant to any of the following,  whether
outstanding  at the date of execution of the Indenture or  thereafter  incurred,
created or assumed: 
        (a) all  indebtedness  of the Company  evidenced  by notes,  debentures,
    bonds,  or other  securities  sold by the Company for money,  including  all
    first mortgage bonds of the Company outstanding from time to time;
        (b) all  indebtedness  of others of the kinds described in the preceding
    clause (a) assumed by or guaranteed in any manner by the Company; and
        (c) all renewals, extensions, or refundings of indebtedness of the kinds
    described in any of the preceding clauses (a) and (b);
unless,  in the  case of any  particular  indebtedness,  renewal,  extension  or
refunding,  the instrument  creating or evidencing the same or the assumption or
guarantee  of the same  expressly  provides  that  such  indebtedness,  renewal,
extension  or  refunding is not superior in right of payment to or is pari passu
with the Debt Securities. (Section 101).

    The Indenture  does not limit the  aggregate  amount of Senior Debt that the
Company  may issue.  As of  September  30,  1995,  outstanding  Senior  Debt and
subordinated debt of the Company  aggregated  approximately $1.6 billion and $75
million, respectively.

FORM, EXCHANGE, AND TRANSFER

    The Debt Securities of each series will be issuable only in fully registered
form  without  coupons  and,  unless  otherwise   specified  in  the  applicable
Prospectus  Supplement,  in  denominations  of $1,000 and any integral  multiple
thereof. (Section 302).

    At the option of the Holder,  subject to the terms of the  Indenture and the
limitations applicable to Global Securities,  Debt Securities of any series will
be exchangeable for other Debt Securities of the same series,  of any authorized
denomination and of like tenor and aggregate principal amount. (Section 305).

    Subject to the terms of the  Indenture  and the  limitations  applicable  to
Global  Securities,  Debt  Securities  may be presented for exchange as provided
above  or for  registration  of  transfer  (duly  endorsed  or with  the form of
transfer endorsed thereon duly executed) at the office of the Security Registrar
or at the  office of any  transfer  agent  designated  by the  Company  for such
purpose.  No service  charge  will be made for any  registration  of transfer or
exchange  of Debt  Securities,  but the  Company  may  require  payment of a sum
sufficient to cover any tax or other  governmental  charge payable in connection
therewith.  Such  transfer  or  exchange  will be  effected  upon  the  Security
Registrar or such transfer  agent,  as the case may be, being satisfied with the
documents  of title and identity of the person  making the request.  The Company
has appointed the Trustee as Security Registrar. Any transfer agent (in addition
to the  Security  Registrar)  initially  designated  by the Company for any Debt
Securities will be named in the applicable Prospectus Supplement. (Section 305).
The Company may at any time designate  additional transfer agents or rescind the
designation  of any  transfer  agent or approve a change in the  office  through
which any  transfer  agent acts,  except  that the  Company  will be required to
maintain a transfer  agent in each Place of Payment for the Debt  Securities  of
each series. (Section 1002).

    If the Debt Securities of any series (or of any series and specified  tenor)
are to be redeemed,  the Company will not be required to (i) issue, register the
transfer of, or exchange any Debt Security of that series (or of that series and
specified tenor, as the case may be) during a period beginning at the opening of
business 15 days before the day of mailing of a notice of redemption of any such
Debt  Security  that may be selected for  redemption  and ending at the close of
business on the day of such mailing or (ii) register the transfer of or exchange
any Debt Security so selected for  redemption,  in whole or in part,  except the
unredeemed  portion of any such Debt Security being  redeemed in part.  (Section
305).

GLOBAL SECURITIES

    Some or all of the Debt  Securities  of any  series may be  represented,  in
whole or in part, by one or more Global  Securities which will have an aggregate
principal amount equal to that of the Debt Securities  represented thereby. Each
Global  Security  will be  registered  in the name of a Depositary  or a nominee
thereof identified in the applicable  Prospectus  Supplement,  will be deposited
with such  Depositary or nominee or a custodian  therefor and will bear a legend
regarding the  restrictions on exchanges and  registration  of transfer  thereof
referred to below and any such other  matters as may be provided for pursuant to
the Indenture.

     Notwithstanding  any  provision  of  the  Indenture  or any  Debt  Security
described  herein,  no Global  Security may be exchanged in whole or in part for
Debt Securities registered,  and no transfer of a Global Security in whole or in
part may be registered,  in the name of any Person other than the Depositary for
such Global Security or any nominee of such Depositary unless (i) the Depositary
has  notified  the  Company  that it is  unwilling  or  unable  to  continue  as
Depositary for such Global Security or has ceased to be qualified to act as such
as required by the  Indenture,  (ii) there shall have occurred and be continuing
an Event of Default  with  respect to the Debt  Securities  represented  by such
Global  Security  or (iii)  there  shall  exist such  circumstances,  if any, in
addition  to or in lieu of  those  described  above as may be  described  in the
applicable Prospectus Supplement. All securities issued in exchange for a Global
Security  or any  portion  thereof  will  be  registered  in such  names  as the
Depositary may direct. (Sections 204 and 305).

    As long as the  Depositary,  or its nominee,  is the registered  Holder of a
Global  Security,  the  Depositary or such nominee,  as the case may be, will be
considered  the sole  owner and  Holder  of such  Global  Security  and the Debt
Securities  represented  thereby for all purposes under the Debt  Securities and
the Indenture.  Except in the limited circumstances referred to above, owners of
beneficial  interests  in a Global  Security  will not be  entitled to have such
Global Security or any Debt Securities  represented  thereby registered in their
names,  will  not  receive  or be  entitled  to  receive  physical  delivery  of
certificated  Debt Securities in exchange therefor and will not be considered to
be the  owners  or  Holders  of such  Global  Security  or any  Debt  Securities
represented  thereby for any purpose under the Debt Securities or the Indenture.
All payments of  principal of and any premium and interest on a Global  Security
will be made to the Depositary or its nominee, as the case may be, as the Holder
thereof.  The laws of some  jurisdictions  require  that certain  purchasers  of
securities take physical  delivery of such securities in definitive  form. These
laws may  impair  the  ability  to  transfer  beneficial  interests  in a Global
Security.

    Ownership of  beneficial  interests in a Global  Security will be limited to
institutions   that  have   accounts   with  the   Depositary   or  its  nominee
("participants")  and to  persons  that may hold  beneficial  interests  through
participants.  In  connection  with the  issuance  of any Global  Security,  the
Depositary will credit, on its book-entry  registration and transfer system, the
respective  principal  amounts  of Debt  Securities  represented  by the  Global
Security to the accounts of its participants.  Ownership of beneficial interests
in a Global  Security will be shown only on, and the transfer of those ownership
interests  will be effected only through,  records  maintained by the Depositary
(with respect to participants'  interests) or any such participant (with respect
to interests of persons held by such  participants  on their behalf).  Payments,
transfers,  exchanges,  and others matters relating to beneficial interests in a
Global Security may be subject to various policies and procedures adopted by the
Depositary from time to time.  None of the Company,  the Trustee or any agent of
the Company or the Trustee will have any  responsibility  or  liability  for any
aspect of the  Depositary's  or any  participant's  records  relating to, or for
payments made on account of, beneficial  interests in a Global Security,  or for
maintaining,  supervising,  or reviewing any records relating to such beneficial
interests.

    Secondary  trading in notes and debentures of corporate issuers is generally
settled in clearing- house or next-day funds. In contrast,  beneficial interests
in a Global  Security,  in some cases,  may trade in the  Depositary's  same-day
funds  settlement  system,  in which case secondary  market trading  activity in
those  beneficial  interests  would be required by the  Depositary  to settle in
immediately  available  funds.  There is no assurance as to the effect,  if any,
that settlement in immediately available funds would have on trading activity in
such  beneficial  interests.   Also,  settlement  for  purchases  of  beneficial
interests  in a  Global  Security  upon the  original  issuance  thereof  may be
required to be made in immediately available funds.

PAYMENT AND PAYING AGENTS

    Unless otherwise indicated in the applicable Prospectus Supplement,  payment
of interest on a Debt Security on any Interest  Payment Date will be made to the
Person  in whose  name  such  Debt  Security  (or one or more  Predecessor  Debt
Securities)  is registered  at the close of business on the Regular  Record Date
for such interest. (Section 307).

     Unless  otherwise  indicated  in  the  applicable  Prospectus   Supplement,
principal of and any premium and interest on the Debt Securities of a particular
series  will be payable at the office of such Paying  Agent or Paying  Agents as
the Company may designate for such purpose from time to time, except that at the
option of the Company payment of any interest may be made by check mailed to the
address of the Person  entitled  thereto as such address appears in the Security
Register.  Unless otherwise indicated in the applicable  Prospectus  Supplement,
the  corporate  trust  office  of the  Trustee  in The City of New York  will be
designated as the Company's  sole Paying Agent for payments with respect to Debt
Securities of each series.  Any other Paying Agents initially  designated by the
Company  for the Debt  Securities  of a  particular  series will be named in the
applicable  Prospectus  Supplement.  The  Company  may  at  any  time  designate
additional  Paying  Agents or rescind  the  designation  of any Paying  Agent or
approve a change in the office through which any Paying Agent acts,  except that
the Company will be required to maintain a Paying Agent in each Place of Payment
for the Debt Securities of a particular series. (Section 1002).

    All  moneys  paid by the  Company to a Paying  Agent for the  payment of the
principal  of or any  premium or  interest  on any Debt  Security  which  remain
unclaimed at the end of two years after such principal,  premium or interest has
become due and  payable  will be repaid to the  Company,  and the Holder of such
Debt  Security  thereafter  may look only to the Company  for  payment  thereof.
(Section 1003).

CONSOLIDATION, MERGER, AND SALE OF ASSETS

    The  Company  may not  consolidate  with or merge  into any other  Person or
convey, transfer or lease its properties and assets substantially as an entirety
to any Person,  and may not permit any Person to consolidate  with or merge into
the  Company  or  convey,   transfer,   or  lease  its   properties  and  assets
substantially as an entirety to the Company, unless (i) the successor Person (if
any) is a corporation,  partnership, trust or other entity organized and validly
existing under the laws of any domestic  jurisdiction  and assumes the Company's
obligations on the Debt  Securities and under the  Indenture,  (ii)  immediately
after giving effect to the transaction, no Event of Default, and no event which,
after notice or lapse of time or both,  would become an Event of Default,  shall
have occurred and be continuing  and (iii)  certain  other  conditions  are met.
(Section 801).

EVENTS OF DEFAULT

    Each of the  following  will  constitute  an  Event  of  Default  under  the
Indenture  with  respect to Debt  Securities  of any series:  (a) failure to pay
principal  of or any premium on any Debt  Security of that series when due;  (b)
failure to pay any  interest  on any Debt  Securities  of that  series when due,
continued  for 30 days;  (c) failure to deposit any sinking fund  payment,  when
due, in respect of any Debt Security of that series;  (d) failure to perform any
other covenant of the Company in the Indenture  (other than a covenant  included
in the  Indenture  solely for the benefit of a series  other than that  series),
continued for 90 days after written notice has been given by the Trustee, or the
Holders of at least 25% in principal  amount of the Outstanding  Debt Securities
of that  series,  as  provided  in the  Indenture;  and (e)  certain  events  in
bankruptcy, insolvency or reorganization. (Section 501).

    If an Event of Default  (other than an Event of Default  described in clause
(e)  above)  with  respect  to the Debt  Securities  of any  series  at the time
Outstanding shall occur and be continuing,  either the Trustee or the Holders of
at least 25% in aggregate principal amount of the Outstanding Debt Securities of
that  series by notice as provided in the  Indenture  may declare the  principal
amount  of the  Debt  Securities  of that  series  (or,  in the case of any Debt
Security that is an Original Issue Discount  Security or the principal amount of
which is not then  determinable,  such portion of the  principal  amount of such
Debt Security,  or such other amount in lieu of such principal amount, as may be
specified in the terms of such Debt Security) to be due and payable immediately.
If an Event of Default  described  in clause (e) above with  respect to the Debt
Securities  of any series at the time  Outstanding  shall occur,  the  principal
amount of all the Debt  Securities  of that  series (or, in the case of any such
Original Issue Discount Security or other Debt Security,  such specified amount)
will automatically,  and without any action by the Trustee or any Holder, become
immediately due and payable. After any such acceleration,  but before a judgment
or  decree  based on  acceleration,  the  Holders  of a  majority  in  aggregate
principal  amount of the  Outstanding  Debt Securities of that series may, under
certain  circumstances,  rescind  and annul such  acceleration  if all Events of
Default, other than the non-payment of accelerated principal (or other specified
amount), have been cured or waived as provided in the Indenture.  (Section 502).
For information as to waiver of defaults, see "Modification and Waiver."

     Subject to the  provisions of the  Indenture  relating to the duties of the
Trustee in case an Event of Default shall occur and be  continuing,  the Trustee
will be under no  obligation  to exercise  any of its rights or powers under the
Indenture at the request or direction of any of the Holders, unless such Holders
shall have offered to the Trustee reasonable  indemnity.  (Section 603). Subject
to such  provisions  for the  indemnification  of the Trustee,  the Holders of a
majority in principal  amount of the  Outstanding  Debt Securities of any series
will have the  right to direct  the time,  method  and place of  conducting  any
proceeding for any remedy  available to the Trustee,  or exercising any trust or
power  conferred on the Trustee,  with  respect to the Debt  Securities  of that
series. (Section 512).

    No Holder of a Debt  Security of any series will have any right to institute
any  proceeding  with  respect to the  Indenture,  or for the  appointment  of a
receiver  or a  trustee,  or for any other  remedy  thereunder,  unless (i) such
Holder has previously  given to the Trustee written notice of a continuing Event
of Default with respect to the Debt Securities of that series,  (ii) the Holders
of at least 25% in aggregate principal amount of the Outstanding Debt Securities
of that  series  have made  written  request,  and such  Holder or Holders  have
offered  reasonable  indemnity,  to the Trustee to institute such  proceeding as
trustee and (iii) the Trustee has failed to institute such  proceeding,  and has
not received from the Holders of a majority in aggregate principal amount of the
Outstanding  Debt Securities of that series a direction  inconsistent  with such
request,  within 60 days after such notice,  request and offer.  (Section  507).
However,  such  limitations  do not apply to a suit  instituted by a Holder of a
Debt Security for the  enforcement of payment of the principal of or any premium
or interest on such Debt Security on or after the  applicable due date specified
in such Debt Security. (Section 508).

    The Company will be required to furnish to the Trustee  annually a statement
by certain of its officers as to whether or not the Company, to their knowledge,
is in default in the  performance or observance of any of the terms,  provisions
and conditions of the Indenture and, if so,  specifying all such known defaults.
(Section 1004).

MODIFICATION AND WAIVER

    Modifications and amendments of the Indenture may be made by the Company and
the  Trustee  with the  consent  of the  Holders  of not  less  than 66 2/3 % in
aggregate  principal  amount of the  Outstanding  Debt Securities of each series
affected by such  modification  or amendment;  provided,  however,  that no such
modification  or  amendment  may,  without  the  consent  of the  Holder of each
Outstanding Debt Security  affected  thereby,  (a) change the Stated Maturity of
the  principal  of, or any  instalment  of principal of or interest on, any Debt
Security, (b) reduce the principal amount of, or any premium or interest on, any
Debt Security,  (c) reduce the amount of principal of an Original Issue Discount
Security or any other Debt Security  payable upon  acceleration  of the Maturity
thereof,  (d) change the place or  currency of payment of  principal  of, or any
premium or interest  on, any Debt  Security,  (e) impair the right to  institute
suit for the enforcement of any payment on or with respect to any Debt Security,
(f) reduce the percentage in principal  amount of Outstanding Debt Securities of
any  series,  the  consent of whose  Holders is  required  for  modification  or
amendment  of the  Indenture,  reduce  the  percentage  in  principal  amount of
Outstanding  Debt  Securities  of any series  necessary for waiver of compliance
with certain  provisions of the  Indenture or for waiver of certain  defaults or
modify such provisions with respect to modification and waiver. (Section 902).

    The Holders of not less than 66 2/3 % in aggregate  principal  amount of the
Outstanding  Debt  Securities of any series may waive  compliance by the Company
with certain  restrictive  provisions  of the  Indenture.  (Section  1008).  The
Holders of a majority in principal  amount of the Outstanding Debt Securities of
any series may waive any past default under the  Indenture,  except a default in
the payment of  principal,  premium,  or  interest  and  certain  covenants  and
provisions of the Indenture  which cannot be amended  without the consent of the
Holder of each Outstanding Debt Security of such series affected. (Section 513).

    The  Indenture  provides  that in  determining  whether  the  Holders of the
requisite  principal  amount of the  Outstanding  Debt  Securities have given or
taken  any  direction,  notice,  consent,  waiver,  or other  action  under  the
Indenture as of any date, (i) the principal amount of an Original Issue Discount
Security  that  will be  deemed  to be  Outstanding  will be the  amount  of the
principal  thereof  that  would  be  due  and  payable  as  of  such  date  upon
acceleration of the Maturity thereof to such date, (ii) if, as of such date, the
principal  amount  payable  at the Stated  Maturity  of a Debt  Security  is not
determinable  (for  example,  because  it is based on an index),  the  principal
amount of such Debt Security deemed to be Outstanding as of such date will be an
amount  determined in the manner prescribed for such Debt Security and (iii) the
principal  amount  of a  Debt  Security  denominated  in  one  or  more  foreign
currencies or currency units that will be deemed to be  Outstanding  will be the
U.S. dollar equivalent,  determined as of such date in the manner prescribed for
such Debt  Security,  of the principal  amount of such Debt Security (or, in the
case of a Debt  Security  described  in clause (i) or (ii) above,  of the amount
described in such clause).  Certain Debt  Securities,  including those for whose
payment or  redemption  money has been  deposited  or set aside in trust for the
Holders and those that have been fully defeased  pursuant to Section 1302,  will
not be deemed to be Outstanding. (Section 101).

    Except in certain limited circumstances, the Company will be entitled to set
any  day as a  record  date  for the  purpose  of  determining  the  Holders  of
Outstanding  Debt  Securities  of any  series  entitled  to  give  or  take  any
direction,  notice, consent, waiver, or other action under the Indenture, in the
manner and  subject to the  limitations  provided in the  Indenture.  In certain
limited  circumstances,  the  Trustee  will be entitled to set a record date for
action by Holders. If a record date is set for any action to be taken by Holders
of a particular series, such action may be taken only by persons who are Holders
of  Outstanding  Debt  Securities  of that  series  on the  record  date.  To be
effective,  such  action  must be taken by  Holders of the  requisite  principal
amount of such Debt Securities  within a specified  period  following the record
date. For any particular record date, this period will be 180 days or such other
shorter period as may be specified by the Company (or the Trustee, if it set the
record date),  and may be shortened or lengthened (but not beyond 180 days) from
time to time. (Section 104).

DEFEASANCE AND COVENANT DEFEASANCE

    If and to the extent indicated in the applicable Prospectus Supplement,  the
Company may elect,  at its option at any time, to have the provisions of Section
1302,  relating to defeasance  and discharge of  indebtedness,  or Section 1303,
relating  to  defeasance  of certain  restrictive  covenants  in the  Indenture,
applied to the Debt  Securities  of any series,  or to any  specified  part of a
series. (Section 1301).

    DEFEASANCE AND DISCHARGE.  The Indenture  provides that,  upon the Company's
exercise  of its  option  (if  any) to have  Section  1302  applied  to any Debt
Securities, the Company will be discharged from all its obligations with respect
to such Debt Securities (except for certain  obligations to exchange or register
the transfer of Debt  Securities,  to replace  stolen,  lost or  mutilated  Debt
Securities, to maintain paying agencies and to hold moneys for payment in trust)
upon the deposit in trust for the benefit of the Holders of such Debt Securities
of money or U.S. Government Obligations,  or both, which, through the payment of
principal and interest in respect thereof in accordance  with their terms,  will
provide  money in an amount  sufficient  to pay the principal of and any premium
and interest on such Debt  Securities  on the  respective  Stated  Maturities in
accordance  with the  terms of the  Indenture  and such  Debt  Securities.  Such
defeasance or discharge  may occur only if, among other things,  the Company has
delivered  to the  Trustee an Opinion of Counsel to the effect  that the Company
has received  from, or there has been  published by, the United States  Internal
Revenue Service a ruling,  or there has been a change in tax law, in either case
to the effect that Holders of such Debt  Securities  will not recognize  gain or
loss for federal  income tax purposes as a result of such  deposit,  defeasance,
and discharge and will be subject to federal  income tax on the same amount,  in
the same  manner  and at the same  times  as  would  have  been the case if such
deposit, defeasance and discharge were not to occur. (Sections 1302 and 1304).

    DEFEASANCE OF CERTAIN  COVENANTS.  The  Indenture  provides  that,  upon the
Company's  exercise of its option (if any) to have  Section  1303 applied to any
Debt  Securities,  the  Company  may omit to  comply  with  certain  restrictive
covenants that may be described in the applicable Prospectus Supplement, and the
occurrence of certain Events of Default, which are described above in clause (d)
(with respect to such  restrictive  covenants) under "Events of Default" and any
that may be described in the applicable  Prospectus  Supplement,  will be deemed
not to be or  result  in an Event  of  Default  and the  provisions  of  Article
Fourteen  relating  to  subordination  (included  in the  Indenture  relating to
subordinated  Debt  Securities)  will cease to be  effective,  in each case with
respect to such Debt Securities.  The Company, in order to exercise such option,
will be  required  to  deposit,  in trust for the benefit of the Holders of such
Debt
Securities,  money or U.S. Government  Obligations,  or both, which, through the
payment of principal and interest in respect  thereof in  accordance  with their
terms,  will provide  money in an amount  sufficient to pay the principal of and
any  premium and  interest  on such Debt  Securities  on the  respective  Stated
Maturities  in  accordance  with  the  terms  of the  Indenture  and  such  Debt
Securities. The Company will also be required, among other things, to deliver to
the  Trustee an Opinion  of  Counsel  to the  effect  that  Holders of such Debt
Securities  will not recognize gain or loss for federal income tax purposes as a
result of such deposit and defeasance of certain obligations and will be subject
to federal  income tax on the same  amount,  in the same  manner and at the same
times as would have been the case if such  deposit  and  defeasance  were not to
occur.  In the event the Company  exercised this option with respect to any Debt
Securities and such Debt Securities were declared due and payable because of the
occurrence  of any Event of  Default,  the  amount of money and U.S.  Government
Obligations so deposited in trust would be sufficient to pay amounts due on such
Debt Securities at the time of their respective Stated Maturities but may not be
sufficient  to pay amounts  due on such Debt  Securities  upon any  acceleration
resulting  from such Event of Default.  In such case,  the Company  would remain
liable for such payments. (Sections 1303 and 1304).

NOTICES

    Notices to Holders of Debt Securities will be given by mail to the addresses
of such Holders as they may appear in the Security  Register.  (Sections 101 and
106).

TITLE

    The Company,  the  Trustee,  and any agent of the Company or the Trustee may
treat the Person in whose name a Debt  Security is  registered  as the  absolute
owner thereof (whether or not such Debt Security may be overdue) for the purpose
of making payment and for all other purposes. (Section 308).

GOVERNING LAW

    The Indenture and the Debt  Securities will be governed by, and construed in
accordance with, the law of the State of New York. (Section 112).

REGARDING THE TRUSTEES

    The Trustee under the Indenture relating to the subordinated Debt Securities
is The Bank of New York. The Company maintains normal banking  arrangements with
The Bank of New York, which includes two commitments in the aggregate  principal
amount  of  approximately  $35.7  million  by The Bank of New York  pursuant  to
reimbursement  agreements  related to letters of credit  issued on behalf of the
Company in connection with issuances of pollution control bonds, the proceeds of
which were made  available  to the  Company,  none of which was  outstanding  at
September  30, 1995.  The Bank of New York also serves as (i) trustee  under the
Mortgage,  (ii) trustee for the holders of several  issues of pollution  control
bonds  issued  on  behalf  of the  Company,  (iii)  investment  manager  for the
Company's   nonunion   post-retirement   medical  fund  and  (iv)  custodian  of
international  fixed-income  assets for the Company's  pension plan. The Trustee
under the Indenture relating to the senior Debt Securities is Chemical Bank. The
Company maintains normal banking  arrangements with Chemical Bank. Chemical Bank
also serves as trustee for the  holders of several  series of bonds  secured by,
among  other  things,  the  Company's  payments  under  its Palo  Verde  Nuclear
Generating Station leases;  these bonds were issued by a party unaffiliated with
the Company.

                             PLAN OF DISTRIBUTION

    The Company intends to sell up to $150 million in aggregate principal amount
of the Offered  Securities to or through  underwriters or dealers,  and may also
sell the Offered  Securities  directly to other purchasers or through agents, as
described  in  the  Prospectus  Supplement  relating  to  an  issue  of  Offered
Securities.

    The distribution of the Offered Securities may be effected from time to time
in one or more transactions at a fixed price or prices, which may be changed, or
at market  prices  prevailing  at the time of sale,  at prices  related  to such
prevailing market prices, or at negotiated prices.

    In  connection  with the sale of the Offered  Securities,  underwriters  may
receive  compensation from the Company or from purchasers of Offered  Securities
for  whom  they may act as  agents  in the form of  discounts,  concessions,  or
commissions. Underwriters may sell Offered Securities to or through dealers, and
such dealers may receive compensation in the form of discounts,  concessions, or
commissions  from the  underwriters  and/or  commissions from the purchasers for
whom they may act as agents. Underwriters,  dealers, and agents that participate
in the distribution of Offered Securities may be deemed to be underwriters,  and
any discounts or commissions received by them from the Company and any profit on
the  resale of  Offered  Securities  by them may be  deemed  to be  underwriting
discounts and commissions under the Securities Act of 1933 (the "1933 Act"). Any
such person who may be deemed to be an underwriter  will be identified,  and any
such compensation received from the Company will be described, in the Prospectus
Supplement.

    Under  agreements  which may be entered into by the  Company,  underwriters,
dealers,  and  agents  who  participate  in  the  distribution  of  the  Offered
Securities may be entitled to  indemnification  by the Company  against  certain
liabilities, including liabilities under the 1933 Act.

                                   EXPERTS

    The  financial  statements  and the related  financial  statement  schedules
incorporated in this Prospectus by reference to the Company's 1994 Annual Report
on Form 10-K have been audited by Deloitte & Touche LLP,  independent  auditors,
as stated in their report,  which is incorporated herein by reference,  and have
been so  incorporated  in reliance upon the report of such firm given upon their
authority as experts in accounting and auditing.

    With respect to the unaudited interim financial  information for the periods
ended March 31, June 30, and September 30, 1995 and 1994,  which is incorporated
herein by reference,  Deloitte & Touche LLP have applied  limited  procedures in
accordance  with  professional  standards  for a  review  of  such  information.
However,  as stated in their reports included in the Company's Quarterly Reports
on Form 10-Q for the quarters  ended March 31, June 30, and  September 30, 1995,
and incorporated by reference herein, they did not audit and they do not express
an opinion on that interim  financial  information.  Accordingly,  the degree of
reliance on their reports on such  information  should be restricted in light of
the limited nature of the review procedures  applied.  Deloitte & Touche LLP are
not subject to the liability  provisions of Section 11 of the  Securities Act of
1933 for their reports on the unaudited  interim financial  information  because
those  reports  are not  "reports"  or a "part"  of the  registration  statement
prepared or certified by an  accountant  within the meaning of Sections 7 and 11
of the Act.

                                LEGAL OPINIONS

    The validity of the  Securities  offered  hereby will be passed upon for the
Company by Snell & Wilmer L.L.P.,  One Arizona Center,  Phoenix,  Arizona 85004,
and, it is currently anticipated, for any underwriters of Securities by Sullivan
& Cromwell,  444 South Flower Street,  Los Angeles,  California 90071. In giving
their  opinions,  Sullivan & Cromwell and Snell & Wilmer  L.L.P.  may rely as to
matters  of New Mexico law upon the  opinion  of  Keleher & McLeod,  P.A.,  1200
Public Service Building,  Albuquerque, New Mexico 87102, Sullivan & Cromwell may
rely as to all matters of Arizona law upon the opinion of Snell & Wilmer L.L.P.,
and Snell & Wilmer  L.L.P.  may rely as to all  matters of New York law upon the
opinion of Sullivan & Cromwell.


=====================================        ===================================

    NO PERSON HAS BEEN AUTHORIZED TO
GIVE  ANY INFORMATION OR TO MAKE ANY
REPRESENTATION NOT CONTAINED IN THIS
PROSPECTUS AND,  IF  GIVEN  OR MADE,
SUCH INFORMATION  OR  REPRESENTATION
MUST NOT  BE  RELIED  UPON AS HAVING
BEEN AUTHORIZED.THIS PROSPECTUS DOES
NOT CONSTITUTE AN OFFER TO SELL OR A                   $150,000,000 
SOLICITATION OF AN OFFER  TO BUY ANY                   
OF THE  SECURITIES OFFERED HEREBY IN
ANY  JURISDICTION  TO  ANY PERSON TO                    
WHOM IT  IS  UNLAWFUL  TO  MAKE SUCH
OFFER  IN SUCH JURISDICTION. NEITHER                ARIZONA PUBLIC SERVICE 
THE DELIVERY OF THIS  PROSPECTUS NOR                        COMPANY        
ANY SALE MADE HEREUNDER SHALL, UNDER               
ANY   CIRCUMSTANCES,   CREATE    ANY
IMPLICATION  THAT  THE   INFORMATION
HEREIN IS  CORRECT AS  OF  ANY  TIME                  
SUBSEQUENT  TO  THE  DATE  HEREOF OR                 FIRST MORTGAGE BONDS    
THAT THERE HAS BEEN NO CHANGE IN THE                    DEBT SECURITIES   
AFFAIRS  OF  THE  COMPANY SINCE SUCH                   
DATE.
            ----------
        
         TABLE OF CONTENTS                                ----------   
                                                          
                                 PAGE                               
                                 ----         

Available Information ..............2           
Incorporation of Certain                        
Documents by Reference .............2            
Selected Information ...............3                     [APS LOGO]
The Company ........................4           
Application of Proceeds ............4                      
Earnings Ratios ....................4           
Description of New Bonds ...........4             
Description of Debt                             
Securities ........................10
Plan of Distribution ..............17                     ----------
Experts ...........................18
Legal Opinions ....................18

=====================================        ===================================

                                   PART II
                    INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

Securities and Exchange Commission registration fee                  $   8,621
Printing, engraving, and postage expenses  .........                    30,000*
Legal fees .........................................                   100,000*
Accounting fees ....................................                    25,000*
Rating Agency fees .................................                   125,000*
Trustee's fees and expenses ........................                    25,000*
Blue Sky fees and expenses .........................                    15,000*
Miscellaneous ......................................                     6,379*
                                                                     ----------
Total ..............................................                 $ 335,000
                                                                     ==========
- ----------
*Estimated.

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

    The law of Arizona permits extensive  indemnification  of present and former
directors,  officers, employees or agents of an Arizona corporation,  whether or
not  authority  for  such  indemnification  is  contained  in  the  indemnifying
corporation's  articles  of  incorporation  or bylaws.  Specific  authority  for
indemnification  of present and former  directors  and  officers,  under certain
circumstances,  is  contained  in Article  Fifth of the  Company's  Articles  of
Incorporation.  In addition,  Section 7.01 of the Company's bylaws provides that
the Company  will  indemnify  present and former  directors  and officers to the
fullest  extent  permitted  by Arizona  law.  Under  Arizona law, in order for a
corporation  to  provide  indemnification,   a  disinterested  majority  of  the
corporation's  board of directors,  independent  legal  counsel,  a court or the
shareholders must find that the director,  officer,  employee or agent acted, or
failed to act, in good faith and in a manner he reasonably believed to be in, or
not opposed to, the best interests of the corporation,  and, with respect to any
criminal  action or  proceeding,  had no  reason  to  believe  his  conduct  was
unlawful.  Statutory  indemnification  is  permissive,  except in the event of a
successful  defense,  when a  director,  officer,  employee  or  agent  must  be
indemnified against expenses, including attorneys' fees, actually and reasonably
incurred by him in  connection  therewith.  Indemnification  is  permitted  with
respect to expenses,  judgments,  fines,  and amounts paid in settlement by such
persons.

    On January 1, 1996, the new Arizona  Business  Corporation  Act (the "ABCA")
will become effective. The ABCA permits extensive indemnification of present and
former  directors,  officers,  employees,  or agents of an Arizona  corporation,
whether  or  not  authority  for  such   indemnification  is  contained  in  the
indemnifying  corporation's articles of incorporation or bylaws. Under the ABCA,
in order  for a  corporation  to  provide  indemnification,  a  majority  of the
corporation's  disinterested  directors,   independent  legal  counsel,  or  the
shareholders  must find that the conduct of the individual to be indemnified was
in good faith and that the individual  reasonably  believed that the conduct was
in the  corporation's  best  interests  (in the case of conduct in an  "official
capacity" with the  corporation) or that the conduct was at least not opposed to
the  corporation's  best  interests  (in all  other  cases).  In the case of any
criminal  proceeding,  the finding must be to the effect that the individual had
no  reasonable  cause to believe the conduct was  unlawful.  Indemnification  is
permitted  with  respect to  expenses,  judgements,  fines,  and amounts paid in
settlement by such individuals.

     Indemnification  under  the ABCA is  permissive,  except  in the event of a
successful defense, in which case a director,  officer,  employee, or agent must
be indemnified against reasonable expenses,  including attorneys' fees, incurred
in  connection  with the  proceeding.  In addition,  the ABCA  requires  Arizona
corporations  to  indemnify  any  "outside  director"  (a director who is not an
officer,  employee,  or  holder  of five  percent  or more of any  class  of the
corporation's stock) against liability unless (i) the corporation's  articles of
incorporation limit such indemnification,  (ii) the outside director is adjudged
liable in a  proceeding  by or in the right of the  corporation  or in any other
proceeding charging improper personal benefit to the director,  or (iii) a court
determines,  before payment to the outside director, that the director failed to
meet the standards of conduct described in the preceding paragraph.  A court may
also  order  that an  individual  be  indemnified  if the court  finds  that the
individual is fairly and reasonably  entitled to indemnification in light of all
of the  relevant  circumstances,  whether  or not  the  individual  has  met the
standards of conduct in this and the preceding paragraph.

    In connection  with the offering made by the  prospectus  which is a part of
this  registration  statement,  as  it  may  be  amended  or  supplemented,  the
underwriters of the Offered  Securities,  pursuant to the relevant  underwriting
agreement, will severally agree to indemnify and hold harmless the Company, each
of its  directors,  each of its  officers  who  have  signed  this  registration
statement,  and each person, if any, who controls the Company within the meaning
of the Securities Act of 1933, as amended (the "Act"),  against  certain losses,
claims, damages or liabilities,  including liabilities under the Act, that arise
out of or are based upon written  information  furnished by such underwriters to
the Company for use in this registration statement or in such prospectus.

    Insurance  is  maintained  on a  regular  basis  (and  not  specifically  in
connection  with  this  offering)  against  liabilities  arising  on the part of
directors and officers out of their performance in such capacities or arising on
the part of the Company out of its foregoing indemnification provisions, subject
to certain exclusions and to the policy limits.

ITEM 16. LIST OF EXHIBITS.

EXHIBIT
  NO.     DESCRIPTION
- -------   ----------------------------------------------------------------------
 1.1      Form of Underwriting Agreement for First Mortgage Bonds.
 1.2      Form of Underwriting Agreement for Debt Securities. 
 4.1      Form(s) of Supplemental Indenture relating to New Bonds (to be filed 
          as Exhibit(s) by means of Form 8-K).
 4.2      Specimen(s) of New Bonds (to be filed as Exhibit(s) by means of 
          Form 8-K).
 4.3      Form of Indenture relating to senior Debt Securities. 
 4.4      Form(s) of Supplemental Indenture relating to Offered Debt Securities
          (to be filed as Exhibit(s) by means of Form 8-K).
 4.5      Specimen(s) of Offered Debt Securities (to be filed as Exhibit(s) 
          by means of Form 8-K).
 5.1      Opinion of Snell & Wilmer L.L.P.
12.1      Computation of Ratio of Earnings to Fixed Charges.
15.1      Letter In Lieu of Consent of Deloitte & Touche LLP Regarding Unaudited
          Interim Financial Information.
23.1      Consent of Deloitte & Touche LLP.
23.2      Consent of Snell & Wilmer L.L.P. (included in Opinion filed as Exhibit
          No. 5.1).
24.1      Power of Attorney (see II-4).
25.1      Form T-1 Statement of Eligibility under the Trust Indenture Act of 
          1939 of The Bank of New York, as Bond Trustee under the Mortgage.
25.2      Form T-1 Statement of Eligibility under the Trust Indenture Act of 
          1939 of The Bank of New York,  as Trustee under the Indenture relating
          to the subordinated Debt Securities.
25.3      Form T-1 Statement of Eligibility under the Trust Indenture Act of 
          1939 of Chemical Bank, as Trustee under the Indenture relating to the
          senior Debt Securities.


    In addition to those Exhibits shown above,  the Company hereby  incorporates
the following  Exhibits  pursuant to Rule 411 of Regulation C promulgated  under
the Securities Act of 1933 by reference to the filings set forth below:


 EXHIBIT                                            PREVIOUSLY FILED                        DATE
 NO.                 DESCRIPTION                       AS EXHIBIT:             FILE NO.   EFFECTIVE
- --------- -------------------------------- --------------------------------- ---------- ------------
                                                                              
4.6       Mortgage and deed of trust       4.1 TO SEPTEMBER 1992 FORM 10-Q
          relating to company's first       Report                            1-4473      11-9-92
          mortgage bonds, together with
          forty-eight indentures          
          supplemental thereto.

          Forty-ninth Supplemental         4.1 to 1992 Form 10-K Report      1-4473      3-30-93
          Indenture.                       

          Fiftieth Supplemental Indenture. 4.2 to 1993 Form 10-K Report      1-4473      3-30-94

          Fifty-first Supplemental         4.1 to August 1, 1993 Form 8-K
          Indenture.                       Report                            1-4473      9-27-93

          Fifty-second Supplemental        4.1 to September 30, 1993 Form
          Indenture.                       10-Q Report                       1-4473     11-15-93

          Fifty-third Supplemental         4.5 to Registration Statement No.                           
          Indenture.                       33-61228 by means of February 23,                           
                                           1994 Form 8-K Report              1-4473       3-1-94       
4.7       Indenture dated as of January 1, 4.6 to January 1, 1995 Form 8-K                        
          1995 among the Company and The   Report                            1-4473      1-11-95  
          Bank of New York, as Trustee,                                                                     
          relating to subordinated Debt       
          Securities.                         

4.8       First Supplemental Indenture      4.4 to January 1, 1995 Form 8-K                       
          dated as of January 1, 1995,      Report                            1-4473      1-11-95    
          relating to the issuance of                                                                  
          $75,000,000 of 10% Junior                                                                    
          Subordinated Deferrable Interest      
          Debentures, Series A, Due 2025.       

4.9       Agreement of Resignation,         4.1 to September 29, 1995 Form                            
          Appointment, Acceptance, and      8-K Report                        1-4473     10-24-95     
          Assignment dated as of August                                                               
          18, 1995 among the Company,       
          Bank of America National Trust
          and Savings Association and 
          The Bank of New  York.       


ITEM 17. UNDERTAKINGS.

    The undersigned registrant hereby undertakes:

        (1) To file,  during any period in which offers or sales are being made,
    a post-effective amendment to this registration statement:

        (i) to  include  any  prospectus  required  by Section  10(a)(3)  of the
    Securities Act of 1933;

        (ii) to reflect in the  prospectus any facts or events arising after the
    effective   date  of  the   registration   statement  (or  the  most  recent
    post-effective  amendment thereof) which,  individually or in the aggregate,
    represent  a  fundamental  change  in  the  information  set  forth  in  the
    registration  statement;  notwithstanding  the  foregoing,  any  increase or
    decrease in the volume of  securities  offered (if the total dollar value of
    securities  offered  would not  exceed  that which was  registered)  and any
    deviation from the low or high end of the estimated  maximum  offering range
    may be  reflected  in the  form of  prospectus  filed  with  the  Commission
    pursuant  to Rule  424(b) if, in the  aggregate,  the  changes in volume and
    price  represent no more than a 20 percent  change in the maximum  aggregate
    offering price set forth in the  "Calculation of Registration  Fee" table in
    the effective registration statement; and

        (iii) to include any  material  information  with respect to the plan of
    distribution not previously  disclosed in the registration  statement or any
    material change to such information in the registration statement;

        provided however, that paragraphs (1)(i) and (1)(ii) do not apply if the
    information  required to be included in a post-effective  amendment by those
    paragraphs is contained in periodic reports filed by the registrant pursuant
    to Section 13 or Section 15(d) of the  Securities  Exchange Act of 1934 that
    are incorporated by reference in the registration statement.

        (2) That,  for the purpose of determining  any liability  under the Act,
    each such post-effective  amendment shall be deemed to be a new registration
    statement  relating to the securities  offered therein,  and the offering of
    such  securities  at that time shall be deemed to be the  initial  bona fide
    offering thereof.

        (3) To remove from  registration by means of a post-effective  amendment
    any  of  the  securities   being  registered  which  remain  unsold  at  the
    termination of the offering.

        (4) That, for purposes of determining  any liability under the Act, each
    filing of the  registrant's  annual  report  pursuant  to  Section  13(a) or
    Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable,
    each filing of an employee  benefit plan's annual report pursuant to Section
    15(d) of the  Securities  Exchange  Act of  1934)  that is  incorporated  by
    reference  in  the  registration  statement  shall  be  deemed  to  be a new
    registration  statement  relating to the securities  offered herein, and the
    offering of such  securities  at that time shall be deemed to be the initial
    bona fide offering thereof.

        (5) That, insofar as indemnification  for liabilities  arising under the
    Securities  Act of  1933  may  be  permitted  to  directors,  officers,  and
    controlling persons of the registrant pursuant to the provisions referred to
    in Item 15 of this  Registration  Statement,  or otherwise,  the Company has
    been advised that, in the opinion of the Securities and Exchange Commission,
    such  indemnification  is against  public policy as expressed in the Act and
    is, therefore,  unenforceable. In the event that a claim for indemnification
    against  such  liabilities  (other  than the  payment by the  registrant  of
    expenses incurred or paid by a director,  officer,  or controlling person of
    the registrant in the successful defense of any action, suit, or proceeding)
    is asserted by such director,  officer,  or controlling person in connection
    with the securities being  registered,  the registrant  will,  unless in the
    opinion of its counsel the matter has been settled by controlling precedent,
    submit to a court of appropriate  jurisdiction  the question of whether such
    indemnification  by it is against  public policy as expressed in the Act and
    will be governed by the final adjudication of such issue.



                                  SIGNATURES

    Pursuant to the  requirements  of the Securities Act of 1933, the registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-3 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the  City of  Phoenix,  State  of  Arizona,  on the  20th day of
November, 1995. 

                                          ARIZONA PUBLIC SERVICE COMPANY 

                                          By      O. MARK DE MICHELE
                                            ------------------------------
                                            (O. Mark De Michele, President
                                              and Chief Executive Officer)

    Pursuant  to  the   requirements   of  the  Securities  Act  of  1933,  this
registration  statement  has been signed below by the  following  persons in the
capacities and on the dates indicated. Each person whose signature appears below
hereby authorizes O. Mark De Michele, William J. Post, Jaron B. Norberg, William
J. Hemelt, and Nancy E. Newquist and each of them, as attorneys-in-fact, to sign
in his or her name and  behalf,  individually  and in each  capacity  designated
below, and to file any amendments,  including post-effective amendments, to this
registration statement.


             SIGNATURE                                  TITLE                          DATE
- ----------------------------------         --------------------------------    -------------------
                                                                          
         O. MARK DE MICHELE
 ----------------------------------
   (O. Mark De Michele, President             Principal Executive Officer
    and Chief Executive Officer)                     and Director               November 20, 1995

          WILLIAM J. POST
 ----------------------------------
          (William J. Post,
      Senior Vice President and               Principal Accounting Officer
      Chief Operating Officer)                       and Director               November 20, 1995

          JARON B. NORBERG 
 ----------------------------------
         (Jaron B. Norberg,
    Executive Vice President and               Principal Financial Officer
      Chief Financial Officer)                       and Director               November 20, 1995

          KENNETH M. CARR
 ----------------------------------
         (Kenneth M. Carr)                            Director                  November 20, 1995

          MARTHA O. HESSE
 ----------------------------------
         (Martha O. Hesse)                            Director                  November 20, 1995

        MARIANNE M. JENNINGS
 ----------------------------------
       (Marianne M. Jennings)                         Director                  November 20, 1995

         ROBERT G. MATLOCK
 ----------------------------------
        (Robert G. Matlock)                           Director                  November 20, 1995

         JOHN R. NORTON III
 ----------------------------------
        (John R. Norton III)                          Director                  November 20, 1995

          DONALD M. RILEY
 ----------------------------------
         (Donald M. Riley)                            Director                  November 20, 1995

          HENRY B. SARGENT
 ----------------------------------
         (Henry B. Sargent)                           Director                  November 20, 1995

          WILMA W. SCHWADA
 ----------------------------------
        (Wilma W. Schwada)                            Director                  November 20, 1995

          VERNE D. SEIDEL
 ----------------------------------
         (Verne D. Seidel)                            Director                  November 20, 1995

           RICHARD SNELL
 ----------------------------------
          (Richard Snell)                             Director                  November 20, 1995

          DIANNE C. WALKER
 ----------------------------------
         (Dianne C. Walker)                           Director                  November 20, 1995

        BEN F. WILLIAMS, JR.
 ----------------------------------
       (Ben F. Williams, Jr.)                         Director                  November 20, 1995

        THOMAS G. WOODS, JR.
 ----------------------------------
       (Thomas G. Woods, Jr.)                         Director                  November 20, 1995





                                                    REGISTRATION NO. 33-
===============================================================================


                      SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


                                  ----------


                                 EXHIBITS TO


                                   FORM S-3


                            REGISTRATION STATEMENT
                                    Under
                          THE SECURITIES ACT OF 1933


                                  ----------


                        ARIZONA PUBLIC SERVICE COMPANY
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)




===============================================================================


                              INDEX TO EXHIBITS

 EXHIBIT 
   NO.    DESCRIPTION
- --------  ----------------------------------------------------------------------
  1.1     Form of Underwriting Agreement for First Mortgage Bonds.
  1.2     Form of Underwriting Agreement for Debt Securities.
  4.1     Form(s) of Supplemental Indenture relating to New Bonds (to be filed 
          as Exhibit(s) by means of Form 8-K).
  4.2     Specimen(s) of New Bonds (to be filed as Exhibit(s) by means of 
          Form 8-K).
  4.3     Form of Indenture relating to senior Debt Securities.
  4.4     Form(s) of Supplemental Indenture relating to Offered Debt Securities
          (to be filed as Exhibit(s) by means of Form 8-K).
  4.5     Specimen(s) of Offered Debt Securities (to be filed as Exhibit(s) by 
          means of Form 8-K).
  5.1     Opinion of Snell & Wilmer L.L.P.
 12.1     Computation of Ratio of Earnings to Fixed Charges.
 15.1     Letter in Lieu of consent of Deloitte & Touche LLP Regarding Unaudited
          Interim Financial Information.
 23.1     Consent of Deloitte & Touche LLP.
 23.2     Consent of Snell & Wilmer L.L.P. (included in Opinion filed as 
          Exhibit No. 5.1).
 24.1     Power of Attorney (see II-4).
 25.1     Form T-1 Statement of Eligibility under the Trust Indenture Act of 
          1939 of The Bank of NewYork, as Bond Trustee under the Mortgage.
 25.2     Form T-1 Statement of Eligibility under the Trust Indenture Act of 
          1939 of The Bank of New York, as Trustee under the Indenture relating
          to the subordinated Debt Securities.
 25.3     Form T-1 Statement of Eligibility under the Trust Indenture Act of 
          1939 of Chemical Bank, as Trustee under the Indenture relating to the
          senior Debt Securities.


     For a description of the Exhibits  incorporated in this filing by reference
see page II-3.