Simultaneous Nuclear Test-Ban Act

Simultaneous Nuclear Test-Ban Act - Expresses the sense of the Congress that the President, before August 6, 1985, should declare that the United States will begin a three month cessation of the testing of nuclear warheads on that date if before that date the Soviet Union makes a similar declaration that effective on that date the Soviet Union will begin a three month cessation of the testing of nuclear warheads. Declares the United States should continue such cessation indefinitely unless and until the President certifies to the Congress that the Soviet Union has conducted a nuclear warhead test.

Expresses the sense of the Congress that during such cessation the President should seek resumption of the comprehensive test ban talks between the United States, Great Britain, and the Soviet Union.

Prohibits the United States from obligating or spending any money for testing nuclear warheads during the three month period beginning on August 6, 1985, if the President does not declare such a cessation of nuclear testing. Authorizes such spending if the President certifies to the Congress that the Soviet Union on or after August 6, 1985, tested a nuclear warhead. Requires the President to include in any such certification: (1) an unclassified report summarizing the basis for the certification; and (2) a classified report describing the Soviet activities that are the basis for the certification. Provides for inclusion in such talks of proposals for long-term mutually acceptable verification measures.

Requires the President to report annually to the Congress on: (1) the progress in nuclear arms control negotiations with the Soviet Union; and (2) whether the President believes that continuation of the cessation of nuclear testing is in the U.S. national security interest.