29 U.S.C. § 2634
Compensation
(a) Pay
Members of the Commission shall serve without compensation.
(b) Travel expenses
Members of the Commission shall be allowed reasonable travel expenses, including a per diem allowance, in accordance with section 5703 of title 5 when performing duties of the Commission.
( Pub. L. 103–3, title III, § 304 , Feb. 5, 1993 , 107 Stat. 25 .)