Exhibit 10(g)












                             GRANTOR TRUST AGREEMENT


                           DATED AS OF APRIL 30, 1999


                                     BETWEEN


                        CONSTELLATION ENERGY GROUP, INC.


                                       AND


                                 CITIBANK, N.A.






                             GRANTOR TRUST AGREEMENT

                                    CONTENTS




                                                                                                                Page

                                                                                                            
SECTION 1  ESTABLISHMENT OF TRUST                                                                                 2

           1.1             Trust is established with Trustee.
           1.2             Trust is irrevocable.
           1.3             Trust is a grantor trust.
           1.4             Assets subject to claims of creditors.
           1.5             Due date of Trust contributions.
           1.6             Discretionary contributions.
           1.7             Eligibility for Trust benefits.
           1.8             Definition of "Required Contribution."
           1.9             Responsibility for Required Contribution calculation.
           1.10            Notification upon failure to made Required Contribution.

SECTION 2  PAYMENTS TO PLAN PARTICIPANTS AND THEIR SURVIVING SPOUSES                                              8

           2.1             CEG required to provide Payment Schedule to Trustee.
           2.2             Failure by CEG to provide Payment Schedule.
           2.3             Tax withholding.
           2.4             Determination entitlement to benefits.
           2.5             Payment of benefits directly by CEG.
           2.6             Authorization for Trustee to defer payments.
           2.7             Determination of insufficient assets.
           2.8             Notification of insufficiency.
           2.9             Restoration of discontinued or reduced payments.
           2.10            Determination of immediate taxation.
           2.11            Reduction of future benefits following immediate taxation.

SECTION 3  TRUSTEE RESPONSIBILITY REGARDING PAYMENTS
           TO TRUST BENEFICIARY WHEN CEG IS INSOLVENT                                                             17

           3.1             Payments cease when CEG is Insolvent.
           3.2             Assets subject to claims of creditors.
           3.2(a)          Duty to inform Trustee of CEG's Insolvency.
           3.2(b)          Trustee's responsibility to cease payments.
           3.2(c)          Trustee reliance on Insolvency evidence.
           3.2(d)          Trustee holds assets for general creditors.
           3.2(e)          Authority to resume payments.
           3.3             Restoration of discontinued payments.


                                   i



SECTION 4  PAYMENTS TO BGE                                                                                        20

           4.1             Return or diversion of Trust assets.
           4.2             Distribution of excess Trust  assets  to  CEG.
           4.3             Distribution  of  excess  Trust  assets following a
                           Change of Control.

SECTION 5  INVESTMENT AUTHORITY                                                                                   21

           5.1             No investment in CEG stock.
           5.2             Acknowledgement of investment guidelines.
           5.3             CEG may appoint investment advisor.
           5.4             CEG may transfer life insurance to Trust.

SECTION 6  DISPOSITION OF INCOME                                                                                  23

SECTION 7  ACCOUNTING BY TRUSTEE                                                                                  23

           7.1             Trustee provides monthly accounting to CEG.
           7.2             Deemed approval of accounting by CEG.
           7.3             Tax returns.
           7.4             Right of Trustee to judicial settlement of accounts.

SECTION 8  RESPONSIBILITY OF TRUSTEE                                                                              26

           8.1             Prudency standard for Trustee.
           8.2             Indemnification of Trustee.
           8.3             Powers of Trustee.
           8.4             Additional powers of Trustee.
           8.5             Trustee prohibited from carrying on business through Trust.

SECTION 9  COMPENSATION AND EXPENSES OF TRUSTEE                                                                   30

           9.1             Trustee's fees.
           9.2             Taxes on Trust income.

SECTION 10 RESIGNATION AND REMOVAL OF TRUSTEE                                                                     31

           10.1            Resignation of Trustee.
           10.2            Removal of Trustee.
           10.3            Removal of Trustee after Change of Control.
           10.4            Resignation of Trustee after Change of Control.
           10.5            Transfer of assets after resignation or removal of Trustee.
           10.6            Appointment of successor Trustee.

SECTION 11 APPOINTMENT OF SUCCESSOR                                                                               32

           11.1            Appointment  of  successor  after  removal  or
                           resignation  of Trustee.

                                  ii


           11.2            Appointment of successor  Trustee  following Change
                           of Control.
           11.3            Responsibility of successor Trustee.
           11.4            Trustee provides written account after removal or resignation.

SECTION 12 AMENDMENT OR TERMINATION                                                                               33

           12.1            Amendments to Trust.
           12.2            Termination date of Trust.
           12.3            Trust termination after participant approval.
           12.4            Amendment following Change of Control.


SECTION 13 MISCELLANEOUS                                                                                          34

           13.1            Provisions prohibited by law.
           13.2            Alienation clause.
           13.3            Trust under New York law.
           13.4            Definitions and plurals.
           13.5            Definition of Change of Control.
           13.6            Certification of authority to act.
           13.7            Indemnification of Trustee.
           13.8            Authority of Trust Agreement.
           13.9            Addresses for Trustee and CEG.

SECTION 14 EFFECTIVE DATE                                                                                         39

EXHIBIT A  PAYMENT SCHEDULE



                                   iii




                             GRANTOR TRUST AGREEMENT
                           Dated as of April 30, 1999
                                     between
                        Constellation Energy Group, Inc.
                                       and
                                 Citibank, N.A.


         THIS AGREEMENT  dated as ofApril 30, 1999, by and  betweenConstellation
Energy  Group,  Inc.,  a Maryland  corporation,  or its  successor  ("CEG")  and
Citibank, N. A., a national banking association as trustee for the trust created
hereby ("Trustee").

                                WITNESSETH THAT:
         WHEREAS,  effective with the April 30, 1999 share exchange  between CEG
and the common  stockholders  of Baltimore Gas and Electric  Company (BGE),  BGE
transferred  to CEG the former BGE Executive  Benefits Plan and BGE's rights and
obligations  under the Grantor Trust Agreement Dated as of July 31, 1994 between
BGE and Citibank, N.A.; and

         WHEREAS, CEG has adopted the Constellation Energy Group, Inc. Executive
Benefits  Plan  (formerly  the  Baltimore  Gas and  Electric  Company  Executive
Benefits Plan) ("Plan"); and

         WHEREAS, CEG has incurred or expects to incur liability under the terms
of such Plan for  nonqualified  supplemental  pension  retirement  benefits with
respect to the individuals participating in such Plan; and

                                       1


         WHEREAS,  CEG wishes to adopt the trust  ("Trust") and to contribute to
the Trust  assets  that  shall be held  therein,  subject to the claims of CEG's
creditors  in the event of CEG's  Insolvency,  as defined in Section 3.1 hereof,
until  paid to Plan  participants  and their  surviving  spouses,  as defined in
Section 7 of the Plan,  in such  manner  and at such times as  specified  in the
Plan; and

         WHEREAS,  it is the  intention  of the  parties  that this Trust  shall
constitute an unfunded  arrangement  and shall not affect the status of the Plan
as an  unfunded  plan  maintained  for the  purpose  of  providing  nonqualified
supplemental  pension  retirement  benefits for a select group of  management or
highly compensated employees, for purposes of Title I of the Employee Retirement
Income Security Act of 1974; and

         WHEREAS,  it is the intention of CEG to make contributions to the Trust
to provide a source of funds to assist in meeting  CEG's  liabilities  under the
Plan;

         NOW,  THEREFORE,  the parties do hereby  establish  the Trust and agree
that the Trust shall be comprised, held and disposed of as follows:

Section 1.  ESTABLISHMENT OF TRUST.

         1.1 CEG hereby adopts and establishes with Trustee the Trust consisting
of such sums of cash and other property,


                                       2


including  collateral  assignments  of  interests  in certain  split dollar life
insurance policies,  (the "principal"),  that currently constitute the Trust and
as  from  time to  time  shall  be paid or  delivered  to  Trustee  to be  held,
administered,  and  disposed of by Trustee as provided in this Trust  Agreement.
The principal of the Trust and any earnings  thereon (the "Trust  assets") shall
be held by Trustee and shall be dealt with in accordance  with the provisions of
this Trust  Agreement  until all payments  required by this Trust Agreement have
been made.

         1.2      The Trust hereby established shall be irrevocable.

         1.3 The Trust is  intended to be a grantor  trust,  of which CEG is the
grantor,  within the  meaning of subpart  E, part I,  subchapter  J,  chapter 1,
subtitle  A of the  Internal  Revenue  Code of 1986,  as  amended,  and shall be
construed accordingly.

         1.4 The Trust assets shall be held  separate and apart from other funds
of CEG and  shall  be  used  exclusively  for  the  uses  and  purposes  of Plan
participants, their surviving spouses, and CEG's general creditors as herein set
forth.  Plan  participants  and their surviving  spouses shall have no preferred
claim on, or any beneficial  ownership interest in, any Trust assets. Any rights
created  under  the Plan  and  this  Trust  Agreement  shall  be mere  unsecured
contractual rights of Plan participants and their surviving spouses against CEG.
Any Trust assets will be subject


                                       3


to the claims of CEG's  general  creditors  under  federal  and state law in the
event of Insolvency, as defined in Section 3.1 hereof.

         1.5 By August 31,  1994,  for the Plan year 1993,  BGE was  required to
irrevocably contribute cash or other property to the Trust in an amount equal to
50% of the Required Contribution,  as defined in Section 1.9 hereof. By April 30
of the year  following  each of the Plan years  1994-1998,  BGE was  required to
irrevocably  contribute  additional  cash or other  peroperty to the Trust in an
amount  equal  to 100% of the  Required  Contribution.  By  April 30 of the year
following  each  of the  Plan  years  1999-2002,  , CEG  shall  be  required  to
irrevocably contribute cash or other property to the Trust in an amount equal to
100% of the Required Contribution.

         1.6 CEG, in its sole discretion, may at any time, or from time to time,
make additional  contributions of cash or other property to the Trust to augment
the Trust assets to be held, administered and disposed of by Trustee as provided
in this Trust  Agreement.  Neither Trustee nor any Plan participant or surviving
spouse shall have any right to compel such additional contributions.

         1.7 Plan  participants or their surviving  spouses shall be eligible to
receive  benefits under this Trust Agreement only if the Plan participant was an
employee of CEG or a subsidiary in CEG's controlled  group  ("Employee") as well
as a Plan participant


                                       4


as of the end of any Plan year for which a contribution was required pursuant to
Section 1.5 hereof,  or as of the end of any Plan year for which a  contribution
was made  pursuant  to Section  1.6,  except  that for the Plan year 1993,  Plan
participants  or their surviving  spouses shall be eligible to receive  benefits
under this Trust Agreement only if the Plan  participant was an Employee as well
as a Plan participant as of the first day of 1993.

         1.8  "Required   Contribution,"   for  purposes  of  the   contribution
requirements as set forth in Section 1.5 hereof, means the sum of (1), (2), (3),
(4) and (5) below  computed as indicated  herein,  less the fair market value of
the Trust  assets at the end of the Plan  year for  which  the  contribution  is
required.

         (1) For Plan participants eligible to receive benefits under this Trust
Agreement  pursuant to Section 1.7 hereof, who were also Employees as of the end
of the Plan  year for which  the  contribution  is  required  (except  Employees
entitled to lump sum payments as indicated  under Section 1.8(4) hereof) and who
were not  eligible  for early  retirement  under the Plan at the end of the Plan
year for which the  contribution  is  required,  an amount  equal to the present
value of an annuity  including  the estimated  present value of post  retirement
supplemental  survivor annuity benefits under the Plan commencing effective with
the  month in which the  participant  becomes  age 65 using (i) the net  accrued
benefit as computed under the Plan (without regard to age and


                                       5


Credited Service eligibility requirements),  expressed as a monthly amount, (ii)
an interest rate equal to the lesser of 8% or 95% of the Interest Rate under the
Plan, and (iii) the Mortality Table.

         (2) For Plan participants eligible to receive benefits under this Trust
Agreement  pursuant to Section 1.7 hereof, who were also Employees as of the end
of the Plan year for which the  contribution  is required  (except CEG Employees
entitled to lump sum payments as indicated  under Section 1.8(4) hereof) and who
were eligible for early retirement under the Plan as of the end of the Plan year
for which the contribution is required,  an amount equal to the present value of
an annuity including the present value of post retirement  supplemental survivor
annuity  benefits  under the Plan  commencing  effective  with the  first  month
following the Plan year for which the contribution is required using (i) the net
accrued benefit as computed under the Plan,  expressed as a monthly amount, (ii)
an interest rate equal to the lesser of 8% or 95% of the Interest Rate under the
Plan, and (iii) the Mortality Table.

         (3) For Plan  participants or their surviving  spouses who are eligible
to receive  benefits under this Trust  Agreement  pursuant to Section 1.7 hereof
who were also  receiving a  retirement  benefit  under the Plan in the form of a
monthly  payment  as of the end of the Plan year for which the  contribution  is
required,  an amount equal to the present value of an annuity as computed  under
(2)(i),(ii), and (iii) above except that the


                                       6


interest rate used to compute the present value under (ii) shall be 8%.

         (4) For all Plan  participants  eligible to receive benefits under this
Trust  Agreement  pursuant  to Section  1.7 hereof who are also  entitled  under
Section 5(c) of the Plan to receive a lump sum payment at the later of age 55 or
upon  separation  from  service  as of the end of the Plan  year for  which  the
contribution is required,  an amount equal to the present value of an annuity as
computed under (1) above.

         (5) In the  event  there  has been a  reduction  or  discontinuance  of
payments  pursuant to Sections 2.6, 2.7, or Section 3 hereof, an amount equal to
the total  amount of any  previously  reduced or  discontinued  payments to Plan
participants  and their  surviving  spouses,  less the  aggregate  amount of any
payments made to Plan  participants and their surviving spouses by CEG or BGE in
lieu of such payments,  plus interest computed pursuant to Section 2.9 hereof on
the net aggregate amount.

         1.9 CEG shall have sole  responsibility  for  providing  to Trustee the
determination  and  calculation  of the  Required  Contribution  which  shall be
determined  and  calculated by the actuary of the Pension Plan of  Constellation
Energy Group,  Inc.  Trustee shall have no  responsibility  with respect to such
determination  and calculation  including the  responsibility  to verify (i) the
accuracy of such calculation or (ii) compliance by CEG with the terms of Section
1 hereof, except as provided in Section 1.11 hereof. Trustee shall have no duty,
obligation or


                                       7


responsibility  to bring any action or proceeding  to enforce the  collection of
the Required Contribution from CEG.

         1.10 In the event CEG fails to make the  Required  Contribution  to the
Trust by the dates specified in Section 1.5 hereof,  Trustee shall notify CEG of
such  failure  by the 15th day of the  month  following  the  month in which the
contribution  was  required.  Such  notification  shall  stipulate  that CEG may
correct the failure to  contribute  by the last day of the month  following  the
month in  which  the  contribution  was  required  (the  "Required  Contribution
correction date"). Trustee shall notify the Plan participants or their surviving
spouses  shown on the most recent  Payment  Schedule,  as defined in Section 2.1
hereof,  provided by CEG to Trustee, in the event CEG fails to make the Required
Contribution by the Required  Contribution  correction date.  Trustee shall make
such  notification  no later than 15 days  following  the Required  Contribution
correction date.

         Section 2.  PAYMENTS TO PLAN PARTICIPANTS AND THEIR SURVIVING SPOUSES.

         2.1 By April 30 of the year following each Plan year until  termination
of the Trust under the  provisions  of Section 12 hereof,  and at other times as
reasonably  requested by Trustee  including such times as Trustee is notified in
writing of the death of a Plan  participant  or  surviving  spouse  eligible  to
receive  benefits  under this Trust  Agreement,  CEG shall  deliver to Trustee a
schedule, substantially in the format of Exhibit A


                                       8


hereof,  and  any  other  necessary   documentation  (such  schedule  and  other
documentation being referred to for this purpose as the "Payment Schedule") that
indicates  the Plan benefit  amounts  currently  payable in respect of each Plan
participant (and his or her surviving spouse),  the form in which such amount is
to be  paid  (as  provided  for or  available  under  the  Plan),  the  time  of
commencement  for  payment of such  amounts,  whether  the Plan  participant  is
receiving  such  payment  as a result of an  entitlement  event (as  defined  in
Section 5(c) of the Plan),  the present value of the future benefits  payable to
Plan  participants  and their  surviving  spouses  under the terms of this Trust
Agreement  computed as under Section 1.8 (1), (2), (3), and (4) hereof,  and the
Required Contribution computed pursuant to Section 1.8 hereof.

         Plan  participants or their surviving  spouses shall be included on the
Payment  Schedule and shall be eligible for benefits under this Trust  Agreement
pursuant  to Section 1.7 hereof  only to the extent  contributions  to the Trust
were required under Section 1.5 hereof,  or for which a contribution was made by
CEG to the Trust  pursuant to Section 1.6 hereof.  A modified  Payment  Schedule
shall be delivered by CEG to Trustee upon the  occurrence of any event,  such as
early  retirement of a Plan  participant or an entitlement  event, as defined in
Section 5(c) of the Plan,  requiring a modification of the Payment Schedule or a
modified Payment Schedule.

                                       9


         CEG shall cause the Payment Schedule which CEG shall provide to Trustee
to be  prepared by the actuary  for the  Pension  Plan of  Constellation  Energy
Group, Inc.

         Except as  otherwise  provided in Sections  2.5  through  2.11  hereof,
Trustee shall make payments to Plan  participants and their surviving spouses in
accordance  with such  Payment  Schedule,  and shall act only upon such  written
direction  and shall have no duty to  determine  the rights of any person  under
this Trust  Agreement or under the Plan or to inquire into the right or power of
CEG to direct or not direct any such payment and shall be  authorized to rely on
the Payment Schedule most recently provided to Trustee by CEG.

         2.2 In the event CEG fails to deliver the  Payment  Schedule to Trustee
by the date  specified in Section 2.1 hereof,  Trustee  shall notify CEG of such
failure by the 15th day of the month  following  the month in which the  Payment
Schedule  was  required to be  delivered  to Trustee.  Such  notification  shall
stipulate  that  CEG may  correct  the  failure  by the  last  day of the  month
following  the month in which the Payment  Schedule was required to be delivered
to Trustee (the "Payment Schedule  correction  date").  Trustee shall notify the
Plan  participants or their  surviving  spouses shown on the most recent Payment
Schedule  provided  by CEG to  Trustee  in the event CEG  fails to  deliver  the
Payment  Schedule to Trustee by the Payment Schedule  correction  date.  Trustee
shall  make  such  notification  no later  than 15 days  following  the  Payment
Schedule correction date If CEG fails to deliver the


                                       10


Payment Schedule to Trustee by the date specified in Section 2.1 hereof, Trustee
shall make payments to Plan participants and their surviving spouses,  except as
otherwise  provided in Sections 2.5 through 2.11 hereof,  in accordance with the
Payment Schedule most recently provided to Trustee by CEG (or prior to April 30,
1999, by BGE). Within a reasonable period of time after CEG delivers the updated
Payment  Schedule  to  Trustee,  Trustee  shall pay all  amounts due to the Plan
participants  and their  surviving  spouses for the period  during which Trustee
relied on the previous Payment Schedule to the extent such amounts have not been
paid by Trustee  under the  previous  Payment  Schedule  or by CEG  pursuant  to
Sections  2.5 through 2.11 hereof.  Such amounts paid by Trustee  shall  include
interest  computed at an 8% per annum rate from the date the  payments  were due
under the Plan to the first day of the month in which such amount was paid.

         2.3 Trustee shall make  provision for the reporting and  withholding of
any  federal,  state or local taxes that may be  required  to be  withheld  with
respect to the payment of benefits from the Trust and shall pay amounts withheld
to the appropriate  taxing  authorities or determine that such amounts have been
reported,  withheld  and  paid by CEG,  provided,  however,  that  CEG  shall be
required  to provide  Trustee  with all  information  reasonably  necessary  for
Trustee to perform such withholding.

         2.4 The entitlement of Plan participants and their surviving spouses to
benefits under the Plan shall be determined


                                       11


by CEG or such  party as it shall  designate  under the Plan,  and any claim for
such benefits  shall be considered  and reviewed under the procedures set out in
the Plan.  Except as  provided  in Section  2.7  hereof,  Trustee  shall have no
responsibility to determine such entitlements or to verify the accuracy of their
determination or to review or supervise the review of claims for benefits.

         2.5 CEG may make payment of benefits  directly to Plan participants and
their  surviving  spouses as they become due in accordance  with the most recent
Payment  Schedule  provided by CEG to Trustee.  CEG shall notify  Trustee of its
decision to make  payment of benefits  prior to the time  amounts are payable to
Plan  participants and their surviving  spouses by indicating such intent on the
Payment  Schedule  provided  by CEG to Trustee  pursuant  to  Section  2.1 or by
separate  written  notification.  CEG shall provide  Trustee with  documentation
substantiating  that such  payments  were made no later than the last day of the
month in which such payments were due in accordance with the most recent Payment
Schedule  provided by CEG to Trustee.  If such  documentation  is not  provided,
Trustee is authorized to make such payments  directly to Plan  participants  and
their surviving  spouses.  In addition,  if the Trust assets are insufficient to
make payments of benefits in accordance  with the most recent  Payment  Schedule
provided by CEG to Trustee,  or are not available to make such payments  because
all or part of the Trust  assets  are  invested  in  collateral  assignments  of
certain split dollar life


                                       12


insurance  policies,  CEG shall pay the balance of each such payment to the Plan
participant or their surviving  spouse as it falls due. Trustee shall notify CEG
of such  insufficiency  or  unavailability  as specified in Sections 2.6 and 2.8
hereof.

         2.6 Where Trustee is required to make payments from the Trust according
to the most recent  Payment  Schedule and CEG does not make  payments in lieu of
such  payments as provided  under  Section 2.5 hereof,  and Trustee is unable to
make the required  payments because all or part of the Trust assets are invested
in the  collateral  assignment  portion of certain  split dollar life  insurance
policies,  Trustee is  authorized to defer the required  payments  until cash is
available to make the required payments under the terms of this Trust Agreement.

         2.7 A determination of insufficiency of Trust assets shall be made with
respect to the end of each Plan year after receipt by the Trustee of the Payment
Schedule  prepared  with  respect to such Plan year or the most  recent  Payment
Schedule in the event CEG fails to deliver  the  Payment  Schedule to Trustee by
the date specified in Section 2.1 hereof.  The Trust assets will be deemed to be
insufficient  to make payments of benefits in accordance  with the terms of such
Payment  Schedule if the market value of the Trust assets at the end of the Plan
year for which the  determination  is being made plus the Required  Contribution
actually  made with respect to such Plan year is less than the present  value of
the future benefits as shown on the most recent


                                       13


Payment Schedule.  In determining the market value of collateral  assignments of
interests in split dollar life insurance policies held by the Trust, Trustee may
rely  on the  valuation  provided  by the  insurance  carrier  who  issued  such
policies,  or the  broker  administering  such  policies.

         In the event of such  insufficiency and to the extent CEG does not make
payments  directly to Plan  participants or their surviving  spouses as provided
under  Section  2.5 hereof,  any payment  made from the Trust will be reduced by
multiplying  such  payment by a fraction,  the  numerator  of which shall be the
value of all cash and other  property held by the Trust and the  denominator  of
which shall be the  aggregate  present  value of all benefits  under the Plan as
shown on the most recent Payment Schedule.

         2.8 If the Trust assets are  insufficient  to make payments of benefits
in accordance with the most recent Payment Schedule, Trustee shall notify CEG of
such insufficiency by May 15 of the year following the Plan year with respect to
which the insufficiency has been determined.  Such notification  shall stipulate
that CEG may correct the  insufficiency by May 31 of the year following the Plan
year  with  respect  to  which  the   insufficiency  has  been  determined  (the
"insufficiency correction date"). Trustee shall notify the participants or their
surviving  spouses shown on the most recent Payment Schedule  provided by CEG to
Trustee in the event CEG fails to correct the insufficiency by the insufficiency
correction date. Trustee shall make such


                                       14


notification no later than 15 days following the  insufficiency  correction date
and  shall  proceed  to reduce  any  payment  made from the Trust in the  manner
specified in Section 2.7 hereof as soon as practicable.

         2.9 If Trustee reduces or discontinues the payment of benefits from the
Trust  pursuant to Section 2.6 and 2.7 hereof and the Trust assets  subsequently
become  sufficient to pay all or part of the previously  reduced or discontinued
benefits,  the first payment following thereafter shall include the aggregate of
all payments due to Plan  participants  and their  surviving  spouses  under the
terms of this Trust Agreement for the period of such reduction or discontinuance
to the extent  Trust  assets are  available,  less the  aggregate  amount of any
payments made to Plan participants and their surviving spouses by CEG in lieu of
the  payments  provided  for  hereunder  during any such period of  reduction or
discontinuance.  In such event where Trust assets are  sufficient  to pay only a
part of the previously reduced or discontinued benefits, amounts relating to the
earliest payments reduced or discontinued shall be paid before all other amounts
due under this Trust  Agreement.  Such  payments  shall  also  include  interest
computed  at an 8% per annum  rate on the net  aggregate  amount of all  payment
reductions  from the date the payments  were due under the Plan to the first day
of the month in which such net aggregate amount was paid.

                                       15


         2.10 In the event there is a final  judicial  determination  or a final
determination  by the Internal  Revenue Service that the Plan  participants  and
their surviving  spouses are subject to any tax with respect to any amounts held
under the terms of the Trust, then Trustee shall make payments from the Trust to
such Plan  participants and their surviving spouses in such amounts as set forth
in such final determination for the purpose of paying federal taxes and interest
and any  penalties  thereon  which such Plan  participants  and their  surviving
spouses  incur  arising  out of such  determination.  Trustee's  decision  as to
whether a final  determination  has occurred  shall be binding and conclusive on
all Plan participants and their surviving spouses.

         2.11 Any payment  from the Trust,  as provided in Section  2.10 hereof,
excluding  interest  and  penalties  paid with respect to federal  taxes,  shall
reduce  the  benefits  payable  under the Plan of those  participants  and their
surviving  spouses  on whose  behalf  such  payments  are made.  It shall be the
responsibility  of CEG to determine or cause to be determined by the actuary for
the  Pension  Plan of  Constellation  Energy  Group,  Inc.  the  amount  of such
reduction and to provide Trustee with an updated Payment Schedule to reflect any
such  reduction  made  hereunder.  Trustee  shall  have no duty  to  verify  any
calculations provided by CEG under this Section 2.11.


                                       16


         Section  3.  TRUSTEE   RESPONSIBILITY   REGARDING   PAYMENTS  TO  TRUST
                      BENEFICIARY WHEN CEG IS INSOLVENT.

         3.1 Trustee  shall cease payment of benefits to Plan  participants  and
their surviving spouses if CEG is Insolvent.  CEG shall be considered  Insolvent
for purposes of this Trust  Agreement if (i) CEG makes a voluntary  filing under
the  United  States  Bankruptcy  Code,  or  (ii)  CEG is  subject  to a  pending
involuntary proceeding as a debtor under the United States Bankruptcy Code.

         3.2 At all times during the  continuance of this Trust,  as provided in
Section  1.4  hereof,  the Trust  assets  shall be  subject to claims of general
creditors of CEG under federal and state law as set forth below.

         3.2(a) The Board of Directors of CEG and the Chief Executive Officer of
CEG shall have the duty to inform Trustee in writing of CEG's  Insolvency.  If a
person  claiming to be a creditor of CEG alleges in writing to Trustee  that CEG
has become  Insolvent,  Trustee shall  determine  whether CEG is Insolvent  and,
pending such  determination,  Trustee shall  discontinue  payment of benefits to
Plan participants and their surviving spouses.

         3.2(b)  Until  receipt of a notice of  Insolvency  as set forth  above,
Trustee shall be under no obligation and shall have no responsibility to suspend
payments  hereunder  and hold the Trust assets for the benefit of CEG's  general
creditors.  Trustee


                                       17


shall  not be deemed to have  notice or  knowledge  of facts or events in public
records or received by  departments  or divisions of Trustee bank other than the
Investor Services division of Trustee bank. Trustee shall not have any liability
to any party for making any payments or  withholding  any  payments  pursuant to
court order or request from trustee in  bankruptcy or  receivership  pursuant to
notice of Insolvency as provided above.

         3.2(c) Unless Trustee has actual knowledge of CEG's Insolvency,  or has
received notice from CEG or a person claiming to be a creditor alleging that CEG
is Insolvent,  Trustee  shall have no duty to inquire  whether CEG is Insolvent.
Trustee may in all events rely on such evidence concerning CEG's solvency as may
be furnished to Trustee and that  provides  Trustee with a reasonable  basis for
making a determination concerning CEG's solvency.

         3.2(d) If at any time  Trustee has  determined  that CEG is  Insolvent,
Trustee shall  discontinue  payments to Plan  participants  and their  surviving
spouses  and shall  hold the  Trust  assets  for the  benefit  of CEG's  general
creditors.  Nothing in this Trust Agreement shall in any way diminish any rights
of Plan  participants  and their  surviving  spouses to pursue  their  rights as
general  creditors  of CEG  with  respect  to  benefits  due  under  the Plan or
otherwise.

                                       18


         3.2(e)   Trustee   shall   resume  the  payment  of  benefits  to  Plan
participants  and their  surviving  spouses in accordance with Section 2 of this
Trust  Agreement only after Trustee has determined that CEG is not Insolvent (or
is no longer  Insolvent).  Where CEG is  subject  to a pending  proceeding  as a
debtor under the United States  Bankruptcy  Code,  Trustee shall resume  payment
when such  proceeding  is dismissed.  In all other cases,  Trustee shall have no
obligation  to so resume  payment  until it shall have  received an  unqualified
opinion of a certified public  accountant that CEG is no longer Insolvent and an
opinion  of counsel  that  there is no legal  prohibition  to  resuming  payment
hereunder.

         3.3 If Trustee  discontinues  the  payment of  benefits  from the Trust
pursuant to Section 3.2 hereof and subsequently resumes such payments, the first
payment following such discontinuance  shall include the aggregate amount of all
payments due to Plan participants and their surviving spouses under the terms of
this Trust Agreement for the period of such  discontinuance,  less the aggregate
amount of any payments made to Plan  participants and their surviving spouses by
CEG or BGE in lieu of the payments provided for hereunder during any such period
of discontinuance  plus interest computed as under Section 2.9 hereof on the net
aggregate  amount of all payments  from the date the payments were due under the
Plan to the first day of the month in which such net aggregate  amount was paid.
CEG shall cause to be  determined  and  calculated by the actuary of the Pension
Plan of Constellation Energy Group, Inc. such net aggregate amount, which


                                       19


determination  shall be conclusive for CEG,  Trustee,  and all Plan participants
and their surviving spouses.

         Section 4.  PAYMENTS TO CEG.

         4.1 Except as provided in Sections  3.2 and 4.2 hereof,  CEG shall have
no right or power to direct  Trustee to return to CEG or to divert to others any
of the Trust  assets  before all  payments  of  benefits  have been made to Plan
participants  and their  surviving  spouses in  accordance  with the most recent
Payment  Schedule  provided  by CEG to  Trustee  and the  terms  of  this  Trust
Agreement.

         4.2 In the event the  market  value of Trust  assets as of the end of a
Plan year exceeds 120 percent of the present  value of future  benefits as shown
on the Payment  Schedule for such Plan year,  plus the amount of any payments as
computed under Section  1.9(5) hereof as of the end of such Plan year,  then CEG
may, in its sole discretion, direct Trustee in writing to distribute such excess
Trust assets,  in whole or in part, to CEG provided such  distribution  does not
contravene  any  provision  of law.  Trustee  shall  have no  responsibility  to
determine the propriety of any such direction.

         4.3  Notwithstanding  Section 4.2 hereof, CEG may not direct Trustee to
distribute  such  excess  Trust  assets  for 2 years  from the date a Change  of
Control is deemed to occur under Section 13.5 hereof.

                                       20


         Section 5.  INVESTMENT AUTHORITY.

         5.1 In no event may Trustee  invest in securities  (including  stock or
rights to acquire  stock) or  obligations  issued by CEG or BGE, other than a de
minimis amount held in common investment vehicles in which Trustee invests.  All
rights associated with the Trust assets shall be exercised by Trustee, and shall
in no event be exercisable by or rest with Plan participants and their surviving
spouses;  provided that CEG may at any time,  upon delivery of written notice to
Trustee, terminate Trustee's authority over the Trust assets.

         5.2 CEG shall submit to Trustee  investment  guidelines  which shall be
acknowledged by Trustee in writing. The Trust assets shall be held, invested and
reinvested by Trustee upon written  direction of CEG and only in accordance with
the  investment  guidelines  most recently  acknowledged  by Trustee.  CEG shall
direct  Trustee to invest or reinvest from time to time the Trust assets (taking
into account,  among other things,  anticipated  cash  requirements for benefits
under  the  Plans);  provided,  however,  that  pending  receipt  of  investment
directions or guidelines from CEG or pending the  acknowledgement  by Trustee of
such  investment  guidelines,  the Trust assets may be held in interest  bearing
cash accounts maintained by Trustee; and provided,  however,  that Trustee shall
not be liable for any failure to maximize the income earned on the Trust assets,
or for any  loss  suffered  by the  Trust,  as a  result  of its  investment  or
reinvestment of the


                                       21


Trust assets in accordance  with 1) directions  received by Trustee from CEG, or
2) the investment guidelines as acknowledged by Trustee.

         5.3 CEG may, in its sole discretion,  appoint an investment  manager or
managers  to manage  (including  the power to acquire  and dispose of) any Trust
assets. Trustee may rely on direction of such investment manager upon receipt of
written direction from CEG and shall be entitled to rely on such direction until
revoked in writing by CEG. Trustee shall not be liable for the acts or omissions
of such investment manager or managers,  unless Trustee  participates  knowingly
in, or knowingly  undertakes to conceal,  an act or omission of such  investment
manager,  knowing that such act or omission is a breach of its or the investment
manager's fiduciary duty. Trustee is under no obligation to review, inquire into
or examine the acts or omissions of any such investment  manager.  Trustee shall
have the duty to inform CEG in the event Trustee  becomes aware of any such acts
or  omissions.  Trustee  shall not be under an obligation to invest or otherwise
manage  Trust  assets  which are  subject to the  management  of the  investment
manager.

         5.4 CEG reserves the right to transfer to the Trust in  satisfaction of
the  contribution  requirements  as  set  forth  in  Section  1.5  hereof,  life
insurance,  annuity  policies  or  contracts  on or for  the  life  of any  Plan
participant,  or to direct Trustee to purchase any such policies or contracts on
or for the life of


                                       22


any such Plan  participant out of the Trust assets.  Any such policy or contract
shall be a Trust asset subject to the claims of CEG's  creditors in the event of
Insolvency,  as defined in Section  3.1  hereof.  The  proceeds,  dividends,  or
distributions  of cash value paid with respect to any life  insurance  policy or
contract held in the Trust shall be paid to the Trust. Trustee shall be under no
duty to question  any  direction of CEG or to review the form of any policies or
contracts or the selection of the issuer thereof,  or to make suggestions to CEG
with respect to the form of such policies or contracts or to the issuer thereof.

         Section 6.  DISPOSITION OF INCOME.

         During the term of this Trust, all income received by the Trust, net of
expenses  and  taxes,  shall be  accumulated  and  reinvested,  until  otherwise
required for disbursement under the terms of this Trust Agreement.

         Section 7.  ACCOUNTING BY TRUSTEE.

         7.1  Trustee   shall  keep   accurate  and  detailed   records  of  all
investments,  receipts, disbursements, and all other transactions required to be
made, including such specific records as shall be agreed upon in writing between
CEG and Trustee.  Within 15 days  following the close of each calendar month and
within 90 days after the  removal  or  resignation  of  Trustee,  Trustee  shall
deliver to CEG a written account of its  administration of the Trust pursuant to
terms of this Trust  Agreement  during  such year or during the period  from the
close of the last preceding year to


                                       23


the  date of  such  removal  or  resignation,  setting  forth  all  investments,
receipts,  disbursements  and other  transactions  effected  by it,  including a
description of all securities and  investments  purchased and sold with the cost
or net proceeds of such purchases or sales (accrued  interest paid or receivable
being shown separately),  and showing all cash, and the cost and market value of
all  securities  and other property held in the Trust at the end of such year or
as of the date of such removal or resignation, as the case may be.

         In the event the insurance  carrier who issued the  insurance  policies
which  are held by or  collaterally  assigned  to the  Trust or the  broker  who
administers  such policies does not timely provide Trustee with the market value
of such insurance policies or collateral  assignments,  Trustee shall provide to
CEG written  accounts under this Section 7.1  containing  all valuations  except
such insurance  valuations.  As soon as practicable following the receipt of the
market valuations from the carrier or the broker, Trustee shall provide CEG with
written accounts containing such insurance valuations.

         7.2 Unless CEG shall have filed with Trustee written  exceptions to any
such  statement or account  delivered by Trustee  pursuant to Section 7.1 hereof
within 90 days after receipt of such  statement or account,  CEG shall be deemed
to have approved such statement or account, and in such case or upon the written
approval  by CEG of any such  statement  or  account,  Trustee  shall be forever
released and discharged with respect to all matters


                                       24


and things  embraced in such  statement or account as though it had been settled
by a decree of a court of competent  jurisdiction  in an action or proceeding to
which CEG or persons having any beneficial interest in the Trust were parties.

         7.3 CEG shall  prepare and file such tax  returns and other  reports as
may be required for the Trust, with any taxing authority or any other government
authority and shall  provide  Trustee with copies of such returns and reports as
soon as practicable  following the date of filing.  Trustee shall provide to CEG
such  information,  to the extent not already  provided through written accounts
delivered to CEG pursuant to Section 7.1, as is necessary for CEG to prepare and
file such tax returns and other reports.

         7.4  Nothing  contained  in this Trust  Agreement  or in the Plan shall
deprive Trustee of the right to have a judicial  settlement of its accounts.  In
any  proceeding  for a judicial  settlement  of the  accounts  of Trustee or for
instruction  in  connection  with the Trust  assets,  the only  necessary  party
thereto in addition to Trustee shall be CEG. If Trustee so elects,  it may bring
in as a party any other  person or persons.  No person  interested  in the Trust
assets, other than CEG, shall have a right to compel an accounting,  judicial or
otherwise,  by Trustee and each such person shall be bound by all accountings as
herein provided, as if the account had been settled by decree of


                                       25


a court of  competent  jurisdiction  in an action or  proceeding  to which  such
person was a party.

         Section 8.  RESPONSIBILITY OF TRUSTEE.

         8.1 Trustee  shall act with the care,  skill,  prudence  and  diligence
under the  circumstances  then  prevailing  that a prudent person acting in like
capacity  and  familiar  with  such  matters  would  use  in the  conduct  of an
enterprise  of a like  character  and with like aims,  provided,  however,  that
Trustee shall incur no liability to any person for any action taken  pursuant to
a direction,  request or approval given by CEG (or investment manager designated
pursuant to terms hereof) which is contemplated  by, and in conformity with, the
terms of this Trust Agreement and is given in writing by CEG.

         8.2  Trustee  need  not  engage  in  any  litigation,   arbitration  or
administrative   proceeding   related  to  this  Trust  Agreement  unless  first
indemnified  to its  reasonable  satisfaction  by CEG  unless  such  litigation,
arbitration  or  administrative  proceeding  is prompted by an  allegation  that
Trustee has breached its duties undertaken pursuant to this Trust Agreement.  If
Trustee proceeds to engage in any such litigation, arbitration or administrative
proceeding and is not so indemnified,  all reasonable costs of Trustee including
reasonable  attorney's  fees  incurred  pursuant to such action shall be charged
against  and paid from the Trust  assets,  except  when the claim  relates to an
allegation that


                                       26


Trustee has breached its duties in which case Trustee shall be  responsible  for
such costs.

         Trustee  may  consult  with  any  legal  counsel,  including,   without
limitation,  counsel to CEG or  Trustee's  own  independent  counsel,  to assist
Trustee in the management and administration of the Trust or with respect to (a)
the  meaning  or  construction  of the terms of this  Trust  Agreement,  (b) its
obligations or duties  hereunder,  (c) any act which Trustee should take or omit
hereunder,  (d) any action or  proceeding,  or (e) any  question  of law. In any
action taken or omitted by Trustee in good faith  pursuant to the advice of such
counsel,  CEG shall  indemnify  and hold  Trustee  harmless  against  reasonable
litigation  expenses and attorney's fees occasioned by such action;  except when
Trustee acted or omitted to act upon the advice of counsel other than counsel to
CEG.

         8.3 Trustee  shall have,  without  exclusion,  all powers  conferred on
trustees  by  applicable  law,  unless  expressly   provided  otherwise  herein,
provided, however, that if an insurance policy is held as an asset of the Trust,
Trustee shall have no power to name a  beneficiary  of the policy other than the
Trust,  to assign the policy (as  distinct  from  conversion  of the policy to a
different form) other than to a successor Trustee,  or to loan to any person the
proceeds of any borrowing against such policy.  Trustee, as assignee under split
dollar life insurance policies, may exercise the right to obtain policy loans in
accordance with the terms of the collateral assignment document.

                                       27


         8.4 In executing its duties, obligations and responsibilities as herein
provided,  and in addition to those powers given by law,  Trustee shall have the
power, in its sole discretion:
         (a) to collect and receive any and all money and other  property due to
the Trust and to give full discharge therefor;
         (b) to settle, compromise or submit to arbitration any claims, debts or
damages due to or owing to or from the Trust;  to  commence  or defend  suits or
legal  proceedings  to protect any interest of the Trust;  and to represent  the
Trust in all suits or legal proceedings in any court or before any other body or
tribunal;
         (c) if specifically  instructed by CEG, to provide benefits through the
purchase of individual or group annuity or life  insurance  contracts  issued by
insurance companies licensed to do business in the State of New York;
         (d) if  specifically  instructed  by CEG,  to act as  agent  for CEG to
perform multiple  services for the Plan, its participants and  beneficiaries and
to receive and withdraw from the Trust assets reasonable compensation therefor;
         (e) to  engage  accountants  or  other  advisors  as  Trustee  may deem
necessary  to control and manage the Trust  assets and to carry out the purposes
of this Trust Agreement;
         (f)  subject to  Section 5 hereof,  to invest  and  reinvest  the Trust
assets without  distinction between principal and income in any form of property
not prohibited by law including, without


                                       28


limitation  on the amount  which may be  invested  therein,  any common or group
trust fund operated by Trustee or in demand deposits of Trustee;
         (g) to hold cash  uninvested  in an  amount  considered  necessary  and
practical for proper administration of the Trust and/or to deposit the same with
any banking,  savings or similar financial institution  supervised by the United
States or any State, including Trustee's own banking department; and
         (h) to  perform  all  such  acts  and  exercise  all  such  rights  and
privileges consistent with applicable law and the terms of this Trust Agreement,
although not  specifically  mentioned  herein,  as Trustee may deem desirable or
necessary  to control and manage the Trust  assets and to carry out the purposes
of this Trust Agreement.

         Except as provided  under Section 13.2, if all or any part of the Trust
assets are at any time attached,  garnished,  or levied upon by any court order,
or in case the payment, assignment, transfer, conveyance or delivery of any such
property  shall be stayed or enjoined by any court order,  or in case any order,
judgment or decree shall be made or entered by a court  affecting  such property
or any part thereof,  then and in any of such events Trustee is  authorized,  in
its sole discretion, to rely upon and comply with any such order, writ, judgment
or decree, and it shall not be liable to CEG (or any of its subsidiaries) or any
participant by reason of such compliance even though such order, writ,  judgment
or  decree  subsequently  may be  reversed,  modified,  annulled,  set  aside or
vacated.

                                       29


         8.5  Notwithstanding  any powers  granted to Trustee  pursuant  to this
Trust  Agreement or to  applicable  law,  Trustee  shall not have any power that
could give this Trust the  objective  of carrying on a business and dividing the
gains therefrom,  within the meaning of section  301.7701-2 of the Procedure and
Administrative Regulations promulgated pursuant to the Internal Revenue Code.

         Section 9.  COMPENSATION AND EXPENSES OF TRUSTEE.

         9.1 CEG shall pay all  administrative  and Trustee's  fees and expenses
(including,  without limitation,  reasonable fees of agents and counsel). If not
so paid, the fees and expenses shall be paid from the Trust; provided,  however,
that CEG may approve in writing the automatic payment of fees,  compensation and
expenses from the Trust. Trustee shall have a lien on the Trust in the amount of
such fees, expenses and compensation until the same have been paid.

         9.2 CEG shall pay any federal,  state,  local or other taxes imposed or
levied with respect to the Trust assets under the existing or future laws.


                                       30


         Section 10.  RESIGNATION AND REMOVAL OF TRUSTEE.

         10.1  Trustee  may resign at any time by written  notice to CEG,  which
shall be effective 30 days after  receipt of such notice  unless CEG and Trustee
agree otherwise in writing.

         10.2 Accept as provided in Section 10.3,  Trustee may be removed by CEG
on 30 days written notice or upon shorter notice accepted by Trustee.

         10.3 Upon a Change of  Control,  as  defined in  Section  13.5  hereof,
Trustee  may not be removed by CEG for 2 years from the date a Change of Control
is deemed to occur under Section 13.5 hereof.

         10.4 If Trustee resigns within 2 years of a Change of Control,  Trustee
shall select a successor  Trustee in accordance  with the  provisions of Section
11.2 hereof prior to the effective date of Trustee's resignation.

         10.5 Upon  resignation  or  removal  of Trustee  and  appointment  of a
successor  Trustee,  all Trust assets shall  subsequently  be transferred to the
successor  Trustee.  The transfer shall be completed at the later of (i) 90 days
after  receipt  of  notice  of  resignation  or  removal  of  Trustee,  or  (ii)
appointment of successor Trustee, unless CEG extends the time limit in writing.

                                       31


         10.6 If Trustee resigns or is removed,  a successor shall be appointed,
in accordance  with Section 11 hereof,  by the effective  date of resignation or
removal under  Sections  10.1 or 10.2 hereof.  If no such  appointment  has been
made, Trustee may apply to a court of competent  jurisdiction for appointment of
a successor or for instructions.  All expenses of Trustee in connection with the
proceeding shall be allowed as administrative expenses of the Trust.

         Section 11.  APPOINTMENT OF SUCCESSOR.

         11.1 If Trustee  resigns or is removed in accordance with Sections 10.1
or 10.2 hereof, CEG may appoint any third party, such as a bank trust department
or other party that may be granted  corporate trustee powers under state law, as
a successor to replace  Trustee upon  resignation  or removal.  The  appointment
shall be effective when accepted in writing by the successor Trustee,  who shall
have all of the rights and powers of the  former  Trustee,  including  ownership
rights in the Trust assets.  The former  Trustee  shall  execute any  instrument
necessary or reasonably requested by CEG or the successor Trustee (in which case
Trustee  shall  have  received  a copy of  successor  Trustee's  acceptance)  to
evidence the transfer of the Trust assets.

         11.2 If Trustee  resigns  pursuant to the  provisions  of Section  10.4
hereof,  Trustee may appoint any third party such as a bank trust  department or
other party that may be granted  corporate  trustee  powers under state law. The
appointment of a


                                       32


successor  Trustee shall be effective  when accepted in writing by the successor
Trustee.  The  successor  Trustee  shall  have all the  rights and powers of the
former Trustee,  including  ownership rights in Trust assets. The former Trustee
shall execute any instrument  necessary or reasonably requested by the successor
Trustee to evidence the transfer of the Trust assets.

         11.3 The successor Trustee need not examine the records and acts of any
prior  Trustee and may retain or dispose of existing  Trust  assets,  subject to
Sections 7 and 8 hereof.  The successor Trustee shall not be responsible for and
CEG shall indemnify and defend the successor Trustee from any claim or liability
resulting  from any action or  inaction  of any prior  Trustee or from any other
past event, or any condition existing at the time it becomes successor Trustee.

         11.4 In the event of such removal or  resignation,  Trustee  shall duly
file with CEG a written account as provided in Section 7.1 hereof.

         Section 12.  AMENDMENT OR TERMINATION.

         12.1 Except as provided in Section  12.4,  this Trust  Agreement may be
amended by a written instrument executed by Trustee and CEG. Notwithstanding the
foregoing,  no such amendment shall conflict with the terms of the Plan or shall
make the Trust revocable.

                                       33


         12.2 The Trust  shall not  terminate  until the  earlier of the date on
which Plan  participants  and their surviving  spouses are no longer entitled to
benefits  pursuant  to the  terms of the Plan or have  received  payment  of all
benefits to which they are entitled under this Trust Agreement. Upon termination
of the Trust any assets remaining in the Trust shall be returned to CEG.

         12.3 Upon  written  approval  of all Plan  participants  and  surviving
spouses  entitled to payment of  benefits  pursuant to the terms of the Plan and
this Trust Agreement, CEG may terminate this Trust prior to the time all benefit
payments  under the Plan and this  Trust  Agreement  have been  made.  All Trust
assets at termination shall be returned to CEG.

         12.4  This  Trust  Agreement  may  not be  amended  by CEG  for 2 years
following a Change of Control,  unless such  amendment  is by written  agreement
between CEG and Trustee and such amendment does not adversely  affect the rights
of the Plan  participants  and their  surviving  spouses  entitled to payment of
benefits pursuant to terms of the Plan on the date a Change of Control is deemed
to occur.

         Section 13.  MISCELLANEOUS.

         13.1 Any provision of this Trust  Agreement  prohibited by law shall be
ineffective  to the extent of any such  prohibition,  without  invalidating  the
remaining provisions hereof.

                                       34


         13.2 Benefits payable to Plan  participants and their surviving spouses
under this Trust Agreement may not be anticipated, assigned (either at law or in
equity), alienated, pledged, encumbered or subjected to attachment, garnishment,
levies,  execution  or other legal or equitable  process,  and any attempt to so
alienate,  sell, transfer,  assign, pledge, attach, charge or otherwise encumber
any such amount,  whether  presently or thereafter  payable,  shall be void. The
Trust shall be in no manner liable for or subject to the debts or liabilities of
any participant.

         13.3  This  Trust  Agreement  shall be  governed  by and  construed  in
accordance with the laws of the State of New York and Trustee shall be liable to
account only in the courts of that state.

         13.4  All  words  beginning  with an  initial  capital  letter  and not
otherwise  defined  herein  shall have the  meaning  set forth in the Plan.  All
singular terms defined in this Trust will include the plural and vice versa.

         13.5 For purposes of this Trust Agreement, Change of Control shall mean
(a) the  purchase  or  acquisition  by any  person,  entity or group of  persons
(within the meaning of section 13(d) or 14(d) of the Securities  Exchange Act of
1934 (the "Exchange Act"), or any comparable successor provisions) of beneficial


                                       35


ownership  (within the meaning of Rule 13d-3 promulgated under the Exchange Act)
of 20 percent or more of either the outstanding shares of common stock of CEG or
the combined voting power of CEG's then outstanding  shares of voting securities
entitled to a vote generally, or (b) the consummation of, following the approval
by the stockholders of CEG of a reorganization, merger, or consolidation of CEG,
in each  case,  with  respect  to which  persons  who were  stockholders  of CEG
immediately  prior to such  reorganization,  merger,  or  consolidation  do not,
immediately  thereafter,  own more than 50 percent of the combined  voting power
entitled to vote  generally in the  election of  directors  of the  reorganized,
merged  or  consolidated  entity's  then  outstanding   securities,   or  (c)  a
liquidation  or  dissolution  of CEG or the  sale  of  substantially  all of its
assets,  or (d) a change of more than  one-half  of the  members of the Board of
Directors  of  CEG  within  a  90-day  period  for  reasons  other  than  death,
disability, or retirement of such members.

         13.6 CEG shall  certify to  Trustee  the name or names of any person or
persons authorized to act for CEG under this Trust Agreement. Such certification
shall be signed by a Vice  President of CEG.  Until CEG notifies  Trustee,  in a
similarly  signed  notice or  certification,  that any such  person is no longer
authorized  to act for CEG,  Trustee may continue to rely upon the  authority of
such person.

         Trustee may rely upon any certificate, schedule, notice or direction of
CEG which Trustee in good faith believes to be


                                       36


genuine,  executed and delivered by a duly  authorized  officer or agent of CEG.
Trustee  shall  have no duty  to  verify  any  calculations  provided  by CEG in
connection with such certificate, schedule, notice or direction.

         Communications  to  Trustee  shall be sent in writing to Trustee at the
address specified in Section 13.9 hereof or to such other address as the Trustee
may  specify in writing.  No  communication  shall be binding  upon the Trust or
Trustee  until it is  received by Trustee and unless it is in writing and signed
by an authorized person.

         Communications  to CEG  shall be sent in  writing  to  CEG's  principal
offices at the address specified in Section 13.9 hereof or to such other address
as CEG may specify in writing.  No communication shall be binding upon CEG until
it is received by CEG and unless it is in writing and signed by Trustee.

         13.7 CEG shall  pay and  shall  protect,  indemnify  and save  harmless
Trustee  and its  officers,  employees  and agents  from and against any and all
losses,  liabilities  (including  liabilities  for penalties),  actions,  suits,
judgments,  demands,  damages,  costs and expenses of any nature arising from or
relating  to any action by or any failure to act by Trustee  (and its  officers,
employees and agents) in accordance with the terms of this Trust  Agreement,  or
the transactions  contemplated by this Trust Agreement  (including any action by
Trustee on the direction or instruction of CEG or any failure to act on the part
of Trustee in the absence of directions or instructions by CEG),


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except to the extent  that any such loss,  liability,  action,  suit,  judgment,
demand,  damage or expense has been  determined by final judgement of a court of
competent  jurisdiction to be the result of the negligence or willful misconduct
of Trustee,  its officers,  employees or agents.  To the extent that CEG has not
fulfilled its obligations  under the foregoing  provisions of this Section 13.7,
Trustee  shall be  reimbursed  out of the Trust assets or may set up  reasonable
reserves for the payment of such obligations. To the maximum extent permitted by
applicable law, no personal liability  whatsoever shall attach to or be incurred
by any employee,  officer or director of CEG, as such, under or by reason of the
terms or conditions contained in or implied from this Trust Agreement.

         Trustee  assumes no  obligation or  responsibility  with respect to any
action  required by this Trust Agreement on the part of CEG and shall have those
responsibilities only as expressly set forth herein.

         13.8 This Trust  Agreement sets forth the entire  understanding  of the
parties with respect to the subject  matter  hereof and  supersedes  any and all
prior agreements, arrangements and understandings relating thereto.

         13.9 Any notice,  report,  demand, waiver or communication  required or
permitted  hereunder  shall be in writing  and shall be given  personally  or by
prepaid  registered or certified mail,  return receipt  requested,  addressed as
follows:

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                               If to CEG:

                               Constellation Investments, Inc.
                               250 West Pratt Street
                               Baltimore, Maryland 21201
                               Attention:  Steven D. Kesler

                               If to Trustee:

                               Citibank, N. A.
                               Client Services Division
                               111 Wall Street, 24th Floor
                               New York, NY  10005
                               Attention:  Ed Flannery

                               If  to  a  participant  or  to  a   participant's
                               surviving spouse:

                               To the address  shown on the most recent  Payment
                               Schedule provided by CEG to Trustee.

         Section 14.  EFFECTIVE DATE.

         The date of this Trust Agreement shall be July 31, 1994.

         IN WITNESS WHEREOF,  and intending to be legally bound hereby,  CEG and
Trustee sign and seal this Trust Agreement the day and year first above written.

WITNESS:                                    CITIBANK, N. A.:

                                            By:                        (Seal)
                                            Name:  Sam Borowski
                                            Title: Managing Director


WITNESS:                                    CONSTELLATION ENERGY GROUP, INC.:


                                            By:                        (Seal)
                                            Name:  Linda D. Miller
                                            Title: Vice President
                                                   Human Resources


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