; and (B) which may vary based on differences in size and complexity among classes of facilities. (3) Ocean commerce, transportation, and navigation enforcement fund There is established in the Treasury a fund, to be known as the Ocean Commerce, Transportation, and Navigation Enforcement Fund (referred to in this subsection as the Fund ), into which shall be deposited amounts collected by the Secretary under paragraph (1) and which shall be available as provided under paragraph (4). (4) Availability of fees Notwithstanding section 3302 of title 31, United States Code, all amounts collected by the Secretary under this section— (A) shall be available for expenditure only for purposes of carrying out inspections of outer Continental Shelf facilities (including mobile offshore drilling units) and carrying out the other duties and responsibilities of the Secretary of the department in which the Coast Guard is operating and the Secretary of Commerce under this Act; (B) shall be available only to the extent provided for in advance in an appropriations Act