5 U.S.C. § 5373 - U.S. Code - Unannotated Title 5. Government Organization and Employees § 5373. Limitation on pay fixed by administrative action

(a) Except as provided in subsection (b) and by the Government Employees Salary Reform Act of 1964 (78 Stat. 400) and notwithstanding the provisions of other statutes, the head of an Executive agency or military department who is authorized to fix by administrative action the annual rate of basic pay for a position or employee may not fix the rate at more than the rate for level IV of the Executive Schedule. This section does not impair the authorities provided by--

(b) Subsection (a) shall not affect the authority of the Secretary of Defense or the Secretary of a military department to fix the pay of a civilian employee paid from nonappropriated funds, except that the annual rate of basic pay (including any portion of such pay attributable to comparability with private-sector pay in a locality) of such an employee may not be fixed at a rate greater than the rate for level III of the Executive Schedule.