43 U.S. Code § 1473c - Payment of costs incidental to services contributed by volunteers
Appropriations under this title  in fiscal year 1992 and thereafter, may be made available for paying costs incidental to the utilization of services contributed by individuals who serve without compensation as volunteers in aid of work for units of the Department of the Interior.
 See References in Text note below.
This title, referred to in text, is title I of Pub. L. 102–154, Nov. 13, 1991, 105 Stat. 990, known as the Department of the Interior and Related Agencies Appropriations Act, 1992. For complete classification of this Act to the Code, see Tables.