Nuclear Weapons Stockpiles Information Act

Nuclear Weapons Stockpiles Information Act - Requires the annual budget material submitted to the Congress by the President to include an unclassified report prepared jointly by the Secretaries of Energy and of Defense concerning the nation's nuclear defense stockpile, including information on existing and proposed future inventories and production of nuclear weapons and fissile materials. Requires the first such report to include a historical record of U.S. nuclear weapons production and materials inventories between 1945 and 1990.

Prohibits funds appropriated to the Departments of Energy or of Defense from being obligated to provide financial assistance to enterprises of the Soviet Ministry of Atomic Power and Industry of the Soviet Union or its successor entities until the President certifies to the Congress that information on past and present Soviet nuclear weapons production and fissile materials inventories has been made available to the public of the Soviet Union.