Allied Waste Industries S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 3.731

Submit in duplicate

Include License and Filing Fees**

     One or more natural persons of the age of 13 years or more may incorporate a business corporation by signing, verifying and delivering Articles of Incorporation in duplicate to the Corporation Commissioner. The procedure for the formation of business corporations is set forth in ORS 57.306 through 57.331. See ORS 57.311 for the content of Articles of Incorporation.

Articles of Incorporation

     The undersigned natural person(s) of the age of eighteen years or more, acting as mcoTpo^ under the Oregon Business Corporation Act, adopt the following Articles of Incorporation:

ARTICLE IThe name of this corporation is United Septic Service , Inc .

(The corporate name must contain the word “Corporation”, “Company”, “Incorporated” or “Limited” or an abbreviation of one of such words.) and its duration shall be perpetual

ARTICLE IIThe purpose or purposes for which the corporation is organized are:

To provide septic pumping services and any lawful activity for which corporations may be organized undo ORS Chapter 57.

(It is not necessary to set forth in the Articles any of the corporate powers enumerated in ORS 57.030 and 57.035. It is sufficient to state, either alone or with other purposes, “That the corporation may engage in any lawful activity for which corporations may be organized under ORS Chapter 57”; however, it is desirable to state the primary purpose of the corporation in conjunction with such statement.)

ARTICLE IIIThe aggregate number of shares which the corporation shall have authority to issue is 5,000 shares $1.00 par value

(Insert statement as to par value of such shares or a statement that all of such shares are to be without par value. If here is more than one class of stock, insert a statement as to the preference, limitations and relative rights of each class.)

ARTICLE IVThe address of the initial registered office of the corporation is 1330 Bank of California Tower, Portland, Oregon 97205

(Street and Number) (NOTE-A P.O. Box No is not acceptable) (City and state) (ZipCode)

and the name of its initial registered agent at such address is Lee Davis Kell

ARTICLE VThe number of directors constituting the initial board of directors of the corporation is one, and the names and addresses of the persons who are to serve as directors until the first annual meeting of shareholders or until their successors are elected and shall qualify are:

Name	Address
	(NOTE: A P.O BOX NUMBER IS NOT ACCEPTABLE) (Street and Number) (City and State) (Zip)
Lee Davis Kell	1330 Bank of California Tower
	Portland, Oregon 97205

ARTICLE VIThe name and address of each incorporator is:

Name	Address
	(NOTE: A P.O BOX NUMBER IS NOT ACCEPTABLE) (Street and Number) (City and State) (Zip)
Lee Davis Kell	1330 Bank of California Tower
	Portland, Oregon 97205

ARTICLE VII(Provisions for regulation of internal affairs of the corporation as may be appropriate.)

     We, the undersigned incorporators, declare under penalties of perjury that we have examined the foregoing and to the best of our knowledge and belief, it is true, correct and complete.

	/s/ Lee Davis Kell
	Lee Davis Kell
Dated February 1, 1977.

** Submit articles in duplicate original with filing and license fees as listed below. Duplicate original means both copies MUST have original signatures.

If authorized	But do not		Filing		License		Total
Shares exceed	exceed		Fee		Fee		Fees
$               0	$	5,000	$	10	$	10	$	20
5,000		10,000		15		15		30
10,000		25,000		20		20		40
25,000		50,000		30		30		60
50,000		100,000		50		50		100
100,000		250,000		75		75		150
250,000		500,000		100		100		200
500,000		1,000,000		125		125		250

the authorized shares exceed $1,000,000. a $200 license fee and a $200 filing fee—totaling $400. determine the amount of organization fee payable by a corporation having stock without par value, but for no other [ILLEGIBLE], such shares of stock snail be deemed equivalent to shares having a par value of $10 each.

File with Corporation Commissioner, Commerce Building, .158 12th Street N.E., Salem, Oregon 97310.

	STATE OF OREGON DEPARTMENT OF COMMERCE CORPORATION DIVISION	Submit the Original And One True Copy CORPORATION No Fee Required
	ARTICLES OF AMENDMENT By Shareholders (ORS 57.370)

1.	Name of corporation prior to amendment: United Septic Service , Inc.
2.	Corporation Division registry number (if known): # 119398-16
3.	Date amendment was adopted by shareholders: April 30, 1987
4.	State article number(s) and set forth article(s) as amended:
	Article I is amended in its entirety to be as follows: “The name of the corporation is Portable Storage Co.”
5.	Shareholder Vote:

Class of	Number of Shares		Number of Shares		Number of Shares		Number of Shares
Shares	Outstanding		Entitled to Vote		Voted For		Voted Against
common		1,000		1,000		1,000	none

6. Other provisions, if applicable, required to be set forth by ORS 57.370 (6) and (7):

7. We, the undersignedofficers, declare under the penalties of perjury that we have examined the foregoing and, to the best of our knowledge and belief, it is true, correct, and complete.

Richard F. Brentano		Duane L. Sorensen
President or Vice President	and	Secretary or Assistant Secretary

     Dated: May 14, 1987.

8. Person to contact about this amendment:

Eric Sogge	222-3531
Name	Telephone number

Suunit the original and true copy to the Corporation Division, Commerce Building, 158 12th Street NE, Salem, Oregon 97310. There is no fee required. If you have any questions, please call (503) 378-4166.

ARTICLES OF AMENDMENT

TO ARTICLES OF INCORPORATION OF

PORTABLE STORAGE CO.

     1. The name of the corporation is Portable Storage Co.

     2. The amendments adopted to the articles of incorporation are as follows, to add the following articles to the articles of incorporation:

“ARTICLE VII. ELIMINATION OF LIABILITY

     “A. To the fullest extent permitted by law, no director of the corporation shall be personally liable to the corporation or its shareholders for monetary damages for conduct as a director, except that this provision shall not eliminate or limit the liability of a director for any of the following:

     “1. Any act or omission occurring before the date this provision becomes effective;

     “2. Any breach of the director’s duty of loyalty to the corporation or its shareholders;

     “3. Acts or omissions not in good faith or that involve intentional misconduct or a knowing violation of law;

     “4. Any distribution to shareholders that is unlawful under the Oregon Business Corporation Act or successor statute; or

     “5. Any transaction from which the director derived an improper personal benefit.

     “B. Without limiting the generality of the foregoing, if the provisions of applicable law are further amended at any time, and from time to time, to authorize corporate action further eliminating the personal liability of directors and officers of the corporation, the liability of directors and officers of the corporation shall be eliminated or limited to the fullest extent permitted by applicable law, as so amended.

     “C. No amendment to or repeal of this Article VII, or adoption of any provision of these Articles of Incorporation inconsistent with this Article VII, or a change in the law, shall adversely affect any elimination or limitation of liability, or other right or protection, that is based upon this Article VII and

pertains to any act, conduct, omission, or circumstance that occurred or existed before the amendment, repeal, adoption, or change. No change in the law shall reduce or eliminate the rights and protections set forth in this Article VII unless the change in law specifically requires the reduction or elimination. No amendment to or repeal of this Article VII shall apply to or have any effect on the liability or alleged liability of any director or officer of the corporation for or with respect to any acts or omissions before the amendment or repeal.”

“ARTICLE VIII. INDEMNIFICATION

     “A. The corporation shall indemnify, to the fullest extent permitted by law, any person who is made or threatened to be made a party to, witness in, or otherwise involved in, any action, suit, or proceeding, whether civil, criminal, administrative, investigative, or otherwise (including any action, suit, or proceeding by or in the right of the corporation) by reason of the fact that the person is or was a director or officer of the corporation or any of its subsidiaries, or a fiduciary within the meaning of the Employee Retirement Income Security Act of 1974 with respect to any employee benefit plan of the corporation or any of its subsidiaries, or served or serves at the request of the corporation as a director or officer, or as a fiduciary of an employee benefit plan, of another corporation, partnership, joint venture, trust, or other enterprise. Any indemnification provided pursuant to this Article VIII shall not be exclusive of any rights to which the person indemnified may otherwise be entitled under any provision of these Articles of Incorporation, the Bylaws, agreement, statute, policy of insurance, or otherwise.

     “B. Indemnification provided under this Article VIII shall continue to cover any director or officer after the person ceases to serve in that capacity and shall enure to the benefit of the person’s heirs, personal representatives, and administrators.

     “C. The right to indemnification conferred by this Article VIII shall be considered a contract right between the corporation and the person entitled to indemnity under this Article VIII.

     “D. In addition to any rights set forth above in this Article VIII, the corporation shall advance all reasonable expenses incurred by a director or officer who on behalf of the corporation is party to a proceeding, in advance of the proceeding to the fullest extent required or authorized under the law.”

     3. The date each amendment was adopted is⁸/₁₈, 1999.

Page 2 — ARTICLES OF AMENDMENT

     4. The amendments were approved by the shareholders. One thousand shares of the corporation are outstanding, 1,000 votes are entitled to be cast on the amendments, 1,000 votes were cast for the amendments, and no votes were cast against the amendments.

Portable Storage Co.
By:	/s/ GaryA.Barton
	GaryA.Barton, Vice President

Page 3 — ARTICLES OF AMENDMENT