Pub. L. 110-161, div. G, tit. VI, sec. 609
TRAVEL EXPENSES.
SEC. 609. TRAVEL EXPENSES. Each member of the Commission shall serve without compensation, but shall receive travel expenses, including per diem in lieu of subsistence, in accordance with applicable provisions in the same manner as persons employed intermittently in the Government service are allowed expenses under section 5703 of title 5, United States Code.