The provisions of this subsection that limit payments to any person or legal entity, and section 1305(d) of the Agricultural Reconciliation Act of 1987 (
7 U.S.C.
1308 note ; Public Law 100–203), shall not be applicable to payments received by a State, political subdivision, or agency thereof in connection with agreements entered into under a special conservation reserve enhancement program carried out by that entity that has been approved by the Secretary.