Contempt Act - Prohibits the head of a federal agency from paying any agency officer or employee during a pay period in which such officer or employee is in a period of contempt of Congress. Defines "period of contempt of Congress" as: (1) the period which begins on the date on which a resolution holding such officer or employee in contempt is adopted by the House of Representatives or Senate and ends on the date on which such resolution is revoked; or (2) the period which begins on the date on which a statement of contempt (i.e., statement of fact that an officer or employee has failed to appear, testify, produce information, or answer pertinent questions when summoned by Congress or a committee of Congress) is filed in the House of Representatives or Senate and ends on the date such statement is withdrawn.