2 U.S. Code § 1921a - Sole and exclusive authority of Board and Chief to determine rates of pay
(a) In general
The Capitol Police Board and the Chief of the Capitol Police shall have the sole and exclusive authority to determine the rates and amounts for each of the following for members of the Capitol Police:
(1) The rate of basic pay (including the rate of basic pay upon appointment), premium pay, specialty assignment and proficiency pay, and merit pay.
(b) No review or appeal permitted
The determination of a rate or amount described in subsection (a) of this section may not be subject to review or appeal in any manner.
(c) Rule of construction
Nothing in this section may be construed to affect—
(1) any authority provided under law for a committee of the House of Representatives or Senate, or any other entity of the legislative branch, to review or approve any determination of a rate or amount described in subsection (a) of this section;
(2) any rate or amount described in subsection (a) of this section which is established under law; or