Except as provided in subsection (b), the Secretary may, for purposes of environmental review, decision making, and action pursuant to the National Environmental Policy Act of 1969 (42 U.S.C. 4321 et seq.), and other provisions of law that further the purposes of such Act, designate the treatment of assistance administered by the Secretary as funds for a special project for purposes of section 3547 of this title.
The designation described in subsection (a) shall not apply to assistance for which a procedure for carrying out the responsibilities of the Secretary under the National Environmental Policy Act of 1969 (42 U.S.C. 4321 et seq.), and other provisions of law that further the purposes of such Act, is otherwise specified in law.