44 U.S.C. § 2705

A member of the Committee may not be paid compensation for service performed as a member of the Committee. However, members of the Committee shall be allowed travel expenses, including per diem in lieu of subsistence, at rates authorized for employees of agencies under subchapter I of chapter 57 of title 5, United States Code, while away from their homes or regular places of business in the performance of service for the Committee.