The Act does not apply to -
(a) Any contract for construction, alteration, or repair of public buildings or public works, including painting and decorating;
(b) Any work required to be done in accordance with the provisions of the Walsh-Healey Public Contracts Act (41 U.S.C. 35-45);
(c) Any contract for transporting freight or personnel by vessel, aircraft, bus, truck, express, railroad, or oil or gas pipeline where published tariff rates are in effect;
(d) Any contract for furnishing services by radio, telephone, telegraph, or cable companies subject to the Communications Act of 1934;
(e) Any contract for public utility services;
(f) Any employment contract providing for direct services to a Federal agency by an individual or individuals; or
(g) Any contract for operating postal contract stations for the U.S. Postal Service.
