A bill entitled "Separation of Powers Defense Act of 1976."

Empowers the House of Representatives, the Senate, or the Congress, for the purpose of asserting the constitutionality of an Act of Congress: (1) to intervene in a Federal court proceeding to which the United States or an agent thereof is a party and in which the constitutionality of an Act is questioned but not defended; and (2) to appeal any Federal court decision involving the United States or an agent thereof which declares an Act of Congress unconstitutional and which the Attorney or Solicitor General decides not to appeal.