; or (B) with respect to which credit is allowable under subpart I or J of part IV of subchapter A of chapter 1 of such Code. (g) Program administration (1) Requirement The Secretary shall establish a uniform system to service the Federal credit instruments made available under this section. (2) Fees The Secretary may collect and spend fees, contingent on authority being provided in appropriations Acts, at a level that is sufficient to cover— (A) the costs of expert firms retained under paragraph (4); and (B) all or a portion of the costs to the Federal Government of servicing the Federal credit instruments provided under this section. (3) Servicer (A) In general The Secretary may appoint a financial entity to assist the Secretary in servicing the Federal credit instruments provided under this section. (B) Duties A servicer appointed under subparagraph (A) shall act as the agent for the Secretary. (C) Fee A servicer appointed under subparagraph (A) shall receive a servicing fee, subject to approval by the Secretary. (4) Assistance from experts The Secretary may retain the services, including counsel, of organizations and entities with expertise in the field of project finance to assist in the underwriting and servicing of Federal credit instruments provided under this section. (h) Statutory construction Nothing in this section shall be construed to— (1) supersede the applicability of other requirements of Federal law (including regulations); (2) relieve any recipient of financial assistance under this section of any obligation to obtain any required State, local, or tribal permit or approval with respect to the project; (3) limit the right of any unit of State, local, or tribal government to approve or regulate any rate of return on private equity invested in the project