5 U.S. Code § 5553
5.U.S. Code § 5553 is about Regulations. It is under Part 3 (Employees) Subpart D (Pay and Allowances) Subchapter 6 (Payment For Accumulated And Accrued Leave) Chapter 55 (Pay Administration) of Title 5 (Government Organizations and Employees) of the Code.
The Office of Personnel Management may prescribe regulations necessary for the administration of this subchapter.