43 U.S.C. § 1471d: Availability of appropriations for transportation, reprint, telephone, and library membership expenses

Appropriations in this title or appropriations made under this title in subsequent Energy and Water Development Appropriations Acts shall on and after October 2, 1992, be available for hire, maintenance, and operation of aircraft; hire of passenger motor vehicles; purchases of reprints; payment for telephone services in private residences in the field, when authorized under regulations approved by the Secretary; and the payment of dues, when authorized by the Secretary, for library memberships in societies or associations which issue publications to members only or at a price to members lower than to subscribers who are not members.