A bill relating to United States adherence to the ABM Treaty.

Expresses the sense of the Senate that: (1) the missile defense programs and activities of the United States should remain consistent with its obligations under the ABM Treaty; (2) the U.S. should consult with Russia and pursue modest modifications to address security considerations in, but not unilaterally abrogate or withdraw from, the Treaty; and (3) a national missile defense system should not be deployed until it is has been tested using realistic parameters and is operationally effective and suitable for use in combat. Limits the obligation or expenditure of funds accordingly.

Requires that the Secretary of Defense certify that such a system is operationally effective before the President decides to deploy a missile defense system or to notify Russia of the U.S. intention to withdraw from the ABM treaty.

Directs the President to submit annual reports to Congress on: (1) the threat posed to the United States and its allies by the use of a weapon of mass destruction by a foreign state or transnational group; (2) the cost of the national missile defense system; and (3) whether the allocation of funds for such system will impair priority defense programs.