; (2) detailing or assigning staff on a non-reimbursable basis for up to 5 business days; and (3) sharing staff and equipment necessary to meet mission requirements. (b) The authority provided by subsection (a) is to support areas of mission alignment between and among component bureaus and offices or where geographic proximity allows for efficiencies. (c) Bureaus and offices entering into agreements authorized under subsections (a)(1) and (a)(3) shall bear costs for such agreements in a manner that reflects their approximate benefit and share of total costs, which may or may not include indirect costs. (d) In furtherance of the requirement in subsection (c), the Secretary of the Interior may make transfers of funds in advance or on a reimbursable basis. II ENVIRONMENTAL PROTECTION AGENCY Science and technology For science and technology, including research and development activities, which shall include research and development activities under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980; necessary expenses for personnel and related costs and travel expenses; procurement of laboratory equipment and supplies; hire, maintenance, and operation of aircraft