29 C.F.R. § 13.27
Timing of pay
The contractor shall compensate an employee for time during which the employee used paid sick leave no later than one pay period following the end of the regular pay period in which the paid sick leave was used.
The contractor shall compensate an employee for time during which the employee used paid sick leave no later than one pay period following the end of the regular pay period in which the paid sick leave was used.