Exhibit 3(f)

LOGO

BY-LAWS
of
CONSTELLATION ENERGY GROUP, INC.

Amended as of January 24, 2003

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ARTICLE I    OFFICES AND HEADQUARTERS

Section 1. Name.

The name of the corporation is Constellation Energy Group, Inc. (the "Corporation").

Section 2. Offices.

The principal office of the Corporation is 750 East Pratt Street, Baltimore, Maryland 21202. The Corporation may also have other offices at such other places,
either within or without the State of Maryland, as the Board of Directors of the Corporation (the "Board") may determine or as the activities of the Corporation may require.

ARTICLE II    STOCKHOLDERS

Section 1. Place of Meetings.

Meetings of stockholders of the Corporation shall be held at such places, either within or without the State of Maryland as may be fixed from time to time by the
Board and stated in the notice of meeting or in a duly executed waiver of notice thereof.

Section 2. Annual Meetings.

The Annual Meeting of the stockholders for the election of directors and for the transaction of general business shall be held on any date during the period of
April 15 through May 15, as determined year to year by the Board. The time and location of the meeting shall be determined by the Board. Failure to hold an Annual Meeting does not
invalidate the Corporation's existence or affect any otherwise valid corporate acts.

The
Chief Executive Officer of the Corporation shall prepare, or cause to be prepared, an annual report containing a full and correct statement of the affairs of the Corporation,
including a balance sheet and a financial statement of operations for the preceding fiscal year, which shall be submitted to the stockholders at or prior to the Annual Meeting.

Section 3. Special Meetings.

Special meetings of the stockholders may be held in the City of Baltimore or in any county in which the Corporation provides service or owns property upon call by
the Chairman of the Board, President or a majority of the Board whenever they deem expedient, or by the Secretary upon the written request of the holders of shares entitled to not less than a majority
of all the votes entitled to be cast at such meeting. Such request of the stockholders shall state the purpose or purposes of the meeting and the matters proposed to be acted on and shall be delivered
to the Secretary, who shall inform such stockholders of the reasonably estimated cost of preparing and mailing such notice of the meeting, and upon payment to the Corporation of such costs the
Secretary shall give notice stating the purpose or purposes of the meeting to all stockholders entitled to vote at such meeting. The business at all special meetings shall be confined to that
specifically named in the notice thereof.

Section 4. Notice and Waiver; Organization of Meeting.

When stockholders are required or permitted to take any action at a meeting whether special or annual, written or printed notice of every meeting shall be given
to each stockholder entitled to vote at the meeting and each other stockholder entitled to notice of the meeting. The notice shall state the

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place, day, and hour of such meeting and, in the case of a special meeting, the purpose or purposes for which the meeting is called. The written notice of any meeting shall be given, personally or by
mail, not less than 10 or more than 90 days before the date of the meeting. If mailed, such notice shall be deemed given when deposited with the United States Postal Service, postage prepaid,
addressed to the stockholder at his or her address as it appears on the records of the Corporation or its registrar. The business at all special meetings shall be confined to that specifically named
in the notice thereof.

When
a meeting is adjourned to another time or place, notice need not be given of the adjourned meeting if the time and place thereof are announced at the meeting at which the
adjournment is taken unless the adjournment is for more than 120 days, or, if after the adjournment, a new record date is fixed for the adjourned meeting, in which circumstances a notice of the
adjourned meeting shall be given to each stockholder of record entitled to vote at the meeting. At the adjourned meeting the Corporation may transact any business which might have been transacted at
the original meeting.

Notice
of any meeting of stockholders may be waived in writing by any stockholders entitled to vote at such meeting. Attendance at a meeting by any stockholder, in person or by proxy,
shall constitute a waiver of notice of such meeting, except when the person attends a meeting for the express purpose of objecting, at the beginning of the meeting, to the transaction of any business
because the meeting is not lawfully called or convened.

All
meetings of the stockholders shall be called to order by the Chairman of the Board, or in his or her absence by the President or a Vice President; or in the case of the absence of
such Officers, then by any stockholder. The party calling the meeting to order shall be Chairman of the meeting. The Secretary of the Corporation, if present, shall act as secretary of the meeting,
unless some other person shall be elected by the stockholders at the meeting to act as secretary. An accurate record of the meeting shall be kept by the secretary thereof, and placed in the record
books of the Corporation.

Section 5. Order of Business.



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Section 6. Quorum.

At any meeting of the stockholders the presence in person or by proxy of stockholders entitled to cast a majority of the votes thereat shall constitute a quorum
for the transaction of business.

When
a quorum is once present to organize a meeting, it is not broken by the subsequent withdrawal of any stockholders.

The
stockholders present, although less than a quorum, may adjourn the meeting to another time or place; provided that notice of such adjourned meeting is given in accordance with the
provisions of Section 4 of this Article II.

Section 7. Voting; Proxies.

At all meetings of the stockholders each stockholder shall be entitled to one vote for each share of Common Stock standing in his or her name and, when the
Preferred Stock is entitled to vote, such number of votes as shall be provided in the Charter of the Corporation for each share of Preferred Stock standing in his or her name, and the votes shall be
cast by stockholders in person or by lawful proxy. However, no proxy shall be voted 11 months after the date thereof, unless the proxy provides for a longer period.

Section 8. Control Shares.

Notwithstanding any other provision of the Charter of the Corporation or these by-laws, Title 3, Subtitle 7 of the Maryland General Corporation Law
(or any successor statute) shall not apply to any acquisition by any person of shares of stock of the Corporation. This section may be repealed, in whole or in part, at any time, whether before or
after an acquisition of control shares and, upon such repeal, may, to the extent provided by any successor by-law, apply to any prior or subsequent control share acquisition.

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Section 9. Method of Voting.

All elections and all other questions shall be decided by a majority of the votes cast, at a meeting at which a quorum is present, except as expressly provided
otherwise by the general laws of the State of Maryland or the Charter and except that Directors shall be elected by a plurality of the votes cast.

Section 10.Ownership of its Own Stock.

Shares
of capital stock of the Corporation held by either (i) the Corporation or (ii) another corporation, if a majority of the shares entitled to vote in the election of
Directors of such other corporation is held, directly or indirectly, by the Corporation (a "Controlled Corporation"), shall neither be entitled to vote nor be counted for quorum purposes. Nothing in
this Section 10 shall be construed as limiting the right of the Corporation or any Controlled Corporation to vote stock of the Corporation held by it in a fiduciary capacity.

Section 11. Inspectors.

The Board of Directors, in advance of any meeting, may, but need not, appoint one or more individual inspectors or one or more entities that designate individuals
as inspectors to act at the meeting or any adjournment thereof. If an inspector or inspectors are not appointed, the person presiding at the meeting may, but need not, appoint one or more inspectors.
In case any person who may be appointed as an inspector fails to appear or act, the vacancy may be filled by appointment made by the Board of Directors in advance of the meeting or at the meeting by
the chairman of the meeting. The inspectors, if any, shall determine the number of shares outstanding and the voting power of each, the shares represented at the meeting, the existence of a quorum,
the validity and effect of proxies, and shall receive votes, ballots or consents, hear and determine all challenges and questions arising in connection with the right to vote, count and tabulate all
votes, ballots or consents, determine the result, and do such acts as are proper to conduct the election or vote with fairness to all stockholders. Each such report shall be in writing and signed by
him or her or by a majority of them if there is more than one inspector acting at such meeting. If there is more than one inspector, the report of a majority shall be the report of the inspectors. The
report of the inspector or inspectors on the number of shares represented at the meeting and the results of the voting shall be prima facie evidence thereof.

Section 12. Record Date for Stockholders; Closing of Transfer Books.

The Board may fix, in advance, a date as the record for the determination of the stockholders entitled to notice of, or to vote at, any meeting of stockholders,
or entitled to receive payment of any dividend, or entitled to the allotment of any rights, or for any other proper purpose. Such date in any case shall not be more than 90 days (and in the
case of a meeting of stockholders not less than 10 days) prior to the date on which the particular action requiring such determination of stockholders is to be taken. Only stockholders of
record on such date shall be entitled to notice of or to vote at such meeting or to receive such dividends or rights, as the case may be. In lieu of fixing a record date the Board may close the stock
transfer books of the Corporation for a period not exceeding 20 nor less than 10 days
preceding the date of any meeting of stockholders or not exceeding 20 days preceding any other of the above mentioned events.

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ARTICLE III    BOARD OF DIRECTORS AND COMMITTEES

Section 1. Powers of Directors

The
business and affairs of the Corporation shall be managed under the direction of the Board which shall have and may exercise all the powers of the Corporation, except such as are
expressly conferred upon or reserved by the stockholders by law, by Charter, or by these by-laws. Except as otherwise provided herein, the Board shall appoint the Officers for the conduct
of the business of the Corporation, determine their duties and responsibilities. The Board may remove any Officer.

Section 2. Number and Election of Directors.

The
Corporation shall have at least seven Directors; provided that the Board of Directors may alter the number of Directors from time to time so long as such number does not exceed 20.
Any alteration in the number of Directors will not affect the tenure of office of any Director. The Directors shall be grouped into three classes, Class I, Class II and Class III.
Directors in each class shall serve a term of three years and until their successors are elected and qualified, or until their earlier resignation or removal. A separate class will be elected at each
Annual Meeting of the stockholders.

Section 3. Vacancies.

If
for any reason any or all the Directors cease to be Directors, such event shall not terminate the Corporation or affect these by-laws or the powers of the remaining
Directors hereunder (even if fewer than three Directors remain). Except as may be provided by the Board in setting the terms of any class or series of preferred stock, any vacancy on the Board may be
filled only by a majority of the remaining Directors, even if the remaining Directors do not constitute a quorum. Any Director elected
to fill a vacancy shall serve for the remainder of the full term of the class in which the vacancy occurred and until a successor is elected and qualified.

Section 4. Resignations.

Any
Director of the Corporation may resign at any time by giving written notice to the Corporation. Such resignation shall take effect at the time specified therein, if any, or if no
time is specified therein, then upon receipt of such notice by the Corporation; and, unless otherwise provided therein, the acceptance of such resignation shall not be necessary to make it effective.

Section 5. Meetings of the Board.

A
regular meeting of the Board shall be held immediately after the Annual Meeting of stockholders or any special meeting of the stockholders at which the Board is elected, and thereafter
regular meetings of the Board shall be held on such dates during the year as may be designated from time to time by the Board. All meetings of the Board shall be held at the general offices of the
Corporation in the City of Baltimore or elsewhere, as ordered by the Board. Of all such meetings (except the regular meeting held immediately after the election of Directors) the Secretary shall give
notice to each Director personally or by telephone, facsimile or electronically directed to, or by written notice deposited in the mails addressed to, his or her residence or business address at least
48 hours before such meeting.

Special
meetings may be held at any time or place upon the call of the Chairman of the Board, or the President, or in their absence, on order of the Executive Committee, if any, by
notices as above. In the event all of the Directors in office waive notice of any meeting in writing at or before the meeting, the meeting may be held without the aforesaid advance notices.

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The
Chairman shall preside at all meetings of the Board, or, in his or her absence, the President or one of the Vice Presidents (if a member of the Board) shall preside. If at any
meeting none of the foregoing persons is present, the Directors present shall designate one of their number to preside at such meeting.

Section 6. Telephone Meetings Permitted.

Members
of the Board, or any committee, may participate in a meeting thereof by means of conference telephone or similar communications equipment in which all persons participating in
the meeting can hear each other, and such participation shall constitute presence in person at such meeting.

Section 7. Quorum.

A
majority of the Directors in office shall constitute a quorum of the Board for the transaction of business. If a quorum is not present at any meeting, a majority of the Directors
present may adjourn to any time and place they may see fit.

Section 8. Committees.

The
Board is authorized to appoint from among its members, an audit committee, a compensation committee, and a nominating and corporate governance committee, and such other committees as
it may, from time to time, deem advisable and to delegate to such committee or committees any of the powers of the Board that it may lawfully delegate. Each such committee shall consist of at least
one Director, except for the audit committee which shall have, at a minimum, the number of members required by applicable law or stock exchange listing standards. The Directors shall annually elect
from among their number members for each committee established. The members of the committees shall hold their offices for one year and until their successors are elected and qualified, or until their
earlier resignation or removal. All vacancies in said committees shall be filled by the Board. The purposes and authority of each committee shall be as set forth in applicable law, board resolution or
committee charter. Any such charter shall be approved annually by the Board.

Section 9. Fees and Expenses.

Each
member of the Board, other than salaried Officers and employees, shall be paid an annual retainer fee, payable in such amount as shall be specified from time to time by the Board.
Each Committee Chair shall be paid an annual retainer fee, payable in such amount as shall be specified from time to time by the Board.

Each
member of the Board, other than salaried Officers and employees, shall be paid such fee as shall be specified from time to time by the Board for attending each regular or special
meeting of the Board and for attending, as a committee member, each meeting of any committee appointed by the Board. Each member shall be paid reasonable traveling expenses incident to attendance at
meetings.

ARTICLE IV    OFFICERS

Section 1. Officers.

The
Corporation shall have a Chairman of the Board, a President, one or more Vice Presidents, a Treasurer, and a Secretary who shall be elected by, and hold office at the will of, the
Board. The Chairman of the Board shall be chosen from among the Directors. The Board shall designate either the Chairman of the Board or the President to be the Chief Executive Officer of the
Corporation. The Board shall also elect such other Officers as they may deem necessary for the conduct of the business

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and affairs of the Corporation. Any two offices, except those of President and Vice President, may be held by the same person, but no person shall sign checks, drafts and promissory notes, or
execute, acknowledge or verify any other instrument in more than one capacity, if such instrument is required by law, the Charter, these by-laws, a resolution of the Board or order of the
Chief Executive Officer to be signed, executed, acknowledged or verified by two or more Officers. The President, any Vice President, or such other persons as may be designated by the Board, shall sign
all special contracts of the Corporation, countersign checks, drafts and promissory notes, and such other papers as may be directed by the Board. The President, or any Vice President, together with
the Treasurer or an Assistant Treasurer (if any), shall have authority to sell, assign or transfer and deliver any bonds, stocks or other securities owned by the Corporation. The Board shall require a
fidelity bond to be given by each Officer, or, in its discretion, the Board may substitute a general blanket fidelity bond or insurance contract to cover all Officers and employees.

Section 2. Duties of the Officers.











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Section 3. Terms of Office; Removals and Vacancies.

Any
Officer may be removed by the Board in its sole judgment. In case of removal, the salary of such Officer shall cease. Removal shall be without prejudice to the contractual rights, if
any, of the person so removed, but election of an Officer shall not of itself create contractual rights.

Each
Officer shall hold office until his or her successor is elected and qualified or until his or her earlier removal or resignation.

Any
vacancy occurring in any office of the Corporation shall be filled by the Board and the Officer so elected shall hold office for the unexpired term in respect of which the vacancy
occurred and until his or her successor shall be duly elected and qualified.

In
any event of absence or temporary disability of any Officer of the Corporation, the Board may authorize another person to perform the duties of that office.

Section 4. Voting Securities Owned by the Corporation.

Powers
of attorney, proxies, waivers of notice of meeting, consents and other instruments relating to securities owned by the Corporation may be executed in the name of and on behalf of
the Corporation by the Chairman, the President or any Vice President and any such Officer may, in the name of and on behalf of the Corporation, take all such action as any such Officer may deem
advisable to vote in person or by proxy at any meeting of security holders of any corporation in which the Corporation may own securities and at any such meeting shall possess and may exercise any and
all rights and powers incident to the ownership of such securities and which, as the owner thereof, the Corporation might have exercised and possessed if present. The Board may, by resolution, from
time to time confer like powers upon any other person or persons.

ARTICLE V    INDEMNIFICATION OF DIRECTORS AND OFFICERS

Section 1. Procedure.

The
Corporation shall indemnify all Directors, Officers and employees to the fullest extent permitted by the general laws of the State of Maryland and shall provide indemnification
expenses in advance to
the extent permitted thereby. The Corporation will follow the procedures required by applicable law in determining persons eligible for indemnification and in making indemnification payments and
advances.

Section 2. Exclusivity, etc.

The
indemnification and advance of expenses provided by the Charter and these by-laws shall not be deemed exclusive of any other rights to which a person seeking
indemnification or advance of expenses may be entitled under any law (common or statutory), or any agreement, vote of stockholders or disinterested Directors or other provision that is consistent with
law, both as to action in his or her official capacity and as to action in another capacity while holding office or while employed or acting as agent for the corporation, shall continue in respect of
all events occurring while a person was a Director or Officer after such person has ceased to be a Director or Officer, and shall inure to the benefits of the estate, heirs, executors and
administrators of such person. All rights to indemnification and advance of expenses under the Charter of the Corporation and hereunder shall be deemed to be a contract between the Corporation and
each Director or Officer of the Corporation who serves or served in such capacity at any time while this by-law is in effect. Nothing herein shall prevent the amendment of this
by-law,providedthat no such amendment shall diminish the rights of any person hereunder with respect to events occurring or claims made
before its adoption or as to claims made

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after its adoption in respect of events occurring before its adoption. Any repeal or modification of this by-law shall not in any way diminish any rights to indemnification or advance of
expenses of such Director or Officer or the obligations of the Corporation arising hereunder with respect to events occurring, or claims made, while this by-law or any provision hereof is
in force.

Section 3. Severability; Definitions.

The
invalidity or unenforceability of any provision of this Article V shall not affect the validity or enforceability of any other provision hereof. The phrase "this
by-law" in this Article V means this Article V in its entirety.

ARTICLE VI    Capital Stock

Section 1. Evidence of Stock Ownership.

Evidence
of ownership of stock in the Corporation may be either pursuant to a certificate(s) or a statement in compliance with the general laws of the State of Maryland, each of which
shall represent the number of shares of stock owned by a stockholder in the Corporation. Stockholders may request that their stock ownership be represented by a certificate(s). In case any Officer who
signed any certificate, in facsimile or otherwise, ceases to be such Officer of the Corporation before the certificate is issued, the certificate may nevertheless be issued by the Corporation with the
same effect as if the Officer had not ceased to be such Officer as of the date of its issue.

For
stock ownership evidenced by a statement, such statement shall be in such form, and executed, as required from time to time by the general laws of the State of Maryland.

Section 2. Transfer of Shares.

Stock
shall be transferable only on the books of the Corporation by assignment in writing by the registered holder thereof, his or her legally constituted attorney, or his or her legal
representative, either upon surrender and cancellation of the certificate(s) therefor, if such stock is represented by a certificate, or upon receipt of such other documentation for stock not
represented by a certificate as the Board and the general laws of the State of Maryland may, from time to time, require.

Section 3. Lost, Stolen or Destroyed Certificates.

No
certificate for shares of stock of the Corporation shall be issued in place of any other certificate alleged to have been lost, stolen, or destroyed, except upon production of such
evidence of the loss, theft or destruction and upon indemnification of the Corporation to such extent and in such manner as the Board may prescribe.

Section 4. Transfer Agents and Registrars.

The
Board shall appoint a person or persons, the Corporation or any incorporated trust company or companies or any of them, as transfer agents and registrars and, if stock is represented
by a certificate, may require that such certificate bear the signatures or the counter-signatures of such transfer agents and registrars, or either of them.

Section 5. Stock Ledger.

The
Corporation shall maintain at its principal office, a stock record containing the names and addresses of all stockholders and the numbers of shares of each class held by each
stockholder.

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ARTICLE VII    Miscellaneous

Section 1. Seal.

The
Board shall provide, subject to change, a suitable corporate seal which may be used by causing it, or facsimile thereof, to be impressed or affixed or reproduced on the Corporation's
stock certificates, bonds, or any other documents on which the seal may be appropriate.

Section 2. Amendments.

These
by-laws, or any of them, may be amended or repealed, and new by-laws may be made or adopted only at any meeting of the Board, by vote of a majority of the
Directors or at a meeting of the shareholders, duly called, by a vote of two-thirds of the shareholders eligible to vote thereon. Pursuant to Articles Supplementary filed with the State
Department of Assessments and Taxation of Maryland, the Corporation has elected, by resolution of the Board, to be subject to Sections 3-803, 3-804(b), 3-804(c) and
3-805 of the Maryland General Corporation Law and the following sections of these by-laws have been amended to conform to such elections, respectively: Article III,
Section 2, third, fourth and last sentences; Article III, Section 2, first sentence; Article III, Section 3; and Article II, Section 3, first sentence,
and therefore, such provisions may be amended, altered or repealed only by resolution of the Board.

Section 3. Section Headings and Statutory References.

The
headings of the Articles and Sections of these by-laws have been inserted for convenience of reference only and shall not be deemed to be a part of these
by-laws.

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