§ 5. Advertisements for proposals for purchases and contracts for supplies or services for Government departments; application to Government sales and contracts to sell and to Government corporations
§ 6a. Advertisements for proposals for purchases and contracts for supplies or services for Government departments; limited to particular agencies under specified circumstances
§ 6a-1. Architect of the Capitol, exception from advertisement requirements
§ 6a-2. Architect of the Capitol, authority for personal services contracts with legal entities
§ 6a-3. House of Representatives, exception from advertisement requirements
§ 6a-4. Director of the Congressional Budget Office, exception from advertisement requirements
§ 6b. Miscellaneous exceptions from advertisement requirements