Notwithstanding the provisions of the Federal Financing Bank Act of 1973 (
12 U.S.C.
2281 et seq.) or any other provision of law (except as may be specifically provided by reference to this subsection in any Act enacted after June 30, 1980), no debt obligation which is guaranteed or committed to be guaranteed by the Secretary of Agriculture or the Secretary of Energy under this section shall be eligible for purchase by, or commitment to purchase by, or sale or issuance to, the Federal Financing Bank or any Federal agency.