The following provision for exemption from the overtime pay provision is contained in section 13(b) of the Fair Labor Standards Act of 1938, as amended (29 U.S.C. 213(b) ):
Under this provision, an employee employed and compensated as described in the quoted paragraph (11) may be employed without payment of overtime compensation for a workweek longer than the maximum workweek applicable to him under section 7(a) of the Act, but only if it is established by a finding of the Secretary that the employee is compensated for his employment as a driver or driver's helper making local deliveries on the basis of trip rates or other delivery payment plan that has the general purpose and effect stated in section 13(b)(11). Such a finding is prescribed by the statute as one of the "explicit prerequisites to exemption". (See Arnold v. Kanowsky,361 U.S. 388 , 392 .)
29 C.F.R. §551.1