29 CFR § 4.181 - Overtime pay provisions of other Acts.
(a) Fair Labor Standards Act. Although provision has not been made for insertion in Government contracts of stipulations requiring compliance with the overtime provisions of the Fair Labor Standards Act, contractors and sub contractors performing contracts subject to the McNamara-O'Hara Service Contract Act may be required to compensate their employees working on or in connection with such contracts for overtime work pursuant to the overtime pay standards of the Fair Labor Standards Act. This is true with respect to employees engaged in interstate or foreign commerce or in the production of goods for such commerce (including occupations and processes closely related and directly essential to such production) and employees employed in enterprises which are so engaged, subject to the definitions and exceptions provided in such Act. Such employees, except as otherwise specifically provided in such Act, must receive overtime compensation at a rate of not less than 1 1/2 times their regular rate of pay for all hours worked in excess of the applicable standard in a workweek. See part 778 of this title. However, the Fair Labor Standards Act provides no overtime pay requirements for employees, not within such interstate commerce coverage of the Act, who are subject to its minimum wage provisions only by virtue of the provisions of section 6(e), as explained in § 4.180.
(b) Contract Work Hours and Safety Standards Act.
(1) The Contract Work Hours and Safety Standards Act (40 U.S.C. 327–332) applies generally to Government contracts, including service contracts in excess of $100,000, which may require or involve the employment of laborers and mechanics. Guards, watchmen, and many other classes of service employees are laborers or mechanics within the meaning of such Act. However, employees rendering only professional services, seamen, and as a general rule those whose work is only clerical or supervisory or nonmanual in nature, are not deemed laborers or mechanics for purposes of the Act. The wages of every laborer and mechanic for performance of work on such contracts must include compensation at a rate not less than 1 1/2 times the employees' basic rate of pay for all hours worked in any workweek in excess of 40. Exemptions are provided for certain transportation and communications contracts, contracts for the purchase of supplies ordinarily available in the open market, and work, required to be done in accordance with the provisions of the Walsh-Healey Act.
(2) Regulations concerning this Act are contained in 29 CFR part 5 which permit overtime pay to be computed in the same manner as under the Fair Labor Standards Act.
(c) Walsh-Healey Public Contracts Act. As pointed out in § 4.117, while some Government contracts may be subject both to the McNamara-O'Hara Service Contract Act and to the Walsh-Healey Public Contracts Act, the employees performing work on the contract which is subject to the latter Act are, when so engaged, exempt from the provisions of the former. They are, however, subject to the overtime provisions of the Walsh-Healey Act if, in any workweek, any of the work performed for the employer is subject to such Act and if, in such workweek, the total hours worked by the employee for the employer (whether wholly or only partly on such work) exceed 40 hours in the workweek. In any such workweek the Walsh-Healey Act requires payment of overtime compensation at a rate not less than 1 1/2 times the employee's basic rate for such weekly overtime hours. The overtime pay provisions of the Walsh-Healey Act are discussed in greater detail in 41 CFR part 50–201.