(b) It is clear from the legislative history of the Portal Act that the major provisions of the Fair Labor Standards Act remain in full force and effect, although the application of some of them is affected in certain respects by the 1947 Act. The provisions of the Portal Act do not directly affect the provisions of section 15(a)(1) of the Fair Labor Standards Act banning shipments in interstate commerce of "hot" goods produced by employees not paid in accordance with the Act's requirements, or the provisions of section 11(c) requiring employers to keep records in accordance with the regulations prescribed by the Administrator. The Portal Act does not affect in any way the provision in section 15(a)(3) banning discrimination against employees who assert their rights under the Fair Labor Standards Act, or the provisions of section 12(a) of the Act banning from interstate commerce goods produced in establishments in or about which oppressive child labor is employed. The effect of the Portal Act in relation to the minimum and overtime wage requirements of the Fair Labor Standards Act is considered in this part in connection with the discussion of specific provisions of the 1947 Act. Sponsors of the legislation asserted that the provisions of the Portal Act do not deprive any person of a contract right or other right which he may have under the common law or under a State statute. See colloquy between Senators Donnell, Hatch and Ferguson, 93 Cong. Rec. 2098; colloquy between Senators Donnell and Ferguson, 93 Cong. Rec. 2127; statement of Representative Gwynne, 93 Cong. Rec. 1557.