1712                             Laws of Maryland                      [Ch. 660

(V) AMENDMENTS. AMENDMENTS TO THIS COMPACT
SHALL BECOME EFFECTIVE WHEN APPROVED BY CON-
GRESS AND MAY BE ADOPTED BY ANY SIGNATORY.

(W) EFFECTIVE DATE. THIS COMPACT SHALL BECOME
BINDING ON A STATE WHEN ENACTED BY IT INTO LAW
AND SUCH STATE SHALL THEREAFTER BE A SIGNATORY.

(X) WITHDRAWAL FROM THE COMPACT. A SIGNA-
TORY MAY WITHDRAW FROM THIS COMPACT BY LEGISLA-
TIVE ACT. WITHDRAWAL SHALL BE EFFECTIVE ONE YEAR
AFTER WRITTEN NOTIFICATION OF WITHDRAWAL TO ALL
SIGNATORIES: PROVIDED, WITHDRAWAL FROM THE COM-
PACT SHALL NOT AFFECT SUPPLEMENTARY AGREEMENT
OBLIGATIONS OF SIGNATORIES EXCEPT AS PROVIDED BY
THE TERMS OF SUCH SUPPLEMENTARY AGREEMENTS.

SECTION 2. AND BE IT FURTHER ENACTED, THAT POWER
OF CONGRESS TO WITHDRAW OR CONDITION ITS CON-
SENT TO THE COMPACT IS EXPRESSLY RESERVED.

SECTION 3. AND BE IT FURTHER ENACTED, THAT NOTH-
ING IN THIS ACT SHALL AFFECT FEDERAL ENVIRON-
MENT PROTECTION LEGISLATION: NOR SHALL SUPPLE-
MENTARY AGREEMENTS EXECUTED UNDER THE FIRST
SECTION ESTABLISH INTERSTATE ENVIRONMENTAL
POLLUTION STANDARDS IN VIOLATION OF ANY FEDERAL
LAW.

SECTION 4. AND BE IT FURTHER ENACTED, THAT AD-
VANCE NOTICE OF THE COMMENCEMENT OF FORMAL NE-
GOTIATIONS BY SIGNATORIES REGARDING A PROPOSED
SUPPLEMENTARY AGREEMENT OR AMENDMENT THERE-
OF SHALL BE GIVEN TO THE PRESIDENT OF THE UNITED
STATES AND HE IS ENCOURAGED TO SEND REPRESENTA-
TIVES TO ATTEND, OBSERVE, AND RENDER COOPERATIVE
ASSISTANCE TO ALL SUCH NEGOTIATION IN ORDER THAT
THE PROVISIONS OF SUCH SUPPLEMENTARY AGREE-
MENTS BE IN ACCORDANCE WITH APPLICABLE FEDERAL
LAW.

SECTION 5. AND BE IT FURTHER ENACTED, THAT CER-
TIFIED COPIES OF SUPPLEMENTARY AGREEMENTS OR
AMENDMENTS THEREOF SHALL BE FILED WITH THE
PRESIDENT OF THE UNITED STATES AND PRESIDING OF-
FICERS OF THE UNITED STATES SENATE AND HOUSE OF
REPRESENTATIVES AND WITHIN SIXTY DAYS OF CON-
GRESSIONAL SESSION FOLLOWING RECEIPT THEREOF,
CONGRESS MAY DISAPPPROVE OR CONDITION SUCH SUP-
PLEMENTARY AGREEMENTS. UNLESS DISAPPROVED BY
CONGRESS, SUPPLEMENTARY AGREEMENTS SHALL BE-
COME EFFECTIVE UPON THE EXPIRATION OF THE SAID
SIXTY-DAY PERIOD.

SECTION 6. AND BE IT FURTHER ENACTED, THAT
STATES MAY ENTER THE INTERSTATE ENVIRONMENT
COMPACT BY STATE LEGISLATION SUBSTANTIALLY EM-