29 C.F.R. § 778.107

The general overtime pay standard in section 7(a) requires that overtime must be compensated at a rate not less than one and one-half times the regular rate at which the employee is actually employed. The regular rate of pay at which the employee is employed may in no event be less than the statutory minimum. (The statutory minimum is the specified minimum wage applicable under section 6 of the Act, except in the case of workers specially provided for in section 14 and workers in Puerto Rico, the Virgin Islands, and American Samoa who are covered by wage orders issued pursuant to section 8 of the Act.) If the employee's regular rate of pay is higher than the statutory minimum, his overtime compensation must be computed at a rate not less than one and one-half times such higher rate. Under certain conditions prescribed in section 7 (f), (g), and (j), the Act provides limited exceptions to the application of the general standard of section 7(a) for computing overtime pay based on the regular rate. With respect to these, see §§ 778.400 through 778.421 and 778.601 and part 548 of this chapter. The Act also provides, in section 7(b), (i), (k) and (m) and in section 13, certain partial and total exemptions from the application of section 7(a) to certain employees and under certain conditions. Regulations and interpretations concerning these exemptions are outside the scope of this part 778 and reference should be made to other applicable parts of this chapter.