431Contracts by Member of Congress432Officer or employee contracting with Member of Congress433Exemptions with respect to certain contracts434Repealed. Pub. L. 87–849, § 2, Oct. 23, 1962, 76 Stat. 1126]Repealed435Contracts in excess of specific appropriation436Convict labor contracts437Repealed. Pub. L. 104–178, § 1(a), Aug. 6, 1996, 110 Stat. 1565]Repealed438, 439Repealed. Pub. L. 106–568, title VIII, § 812(c)(2), Dec. 27, 2000, 114 Stat. 2917]Repealed440Mail contracts441Postal supply contracts442Government Publishing Office443War contracts