On exhaustion of funds made available under subparagraph (A), the Secretary [of Agriculture] may use funds made available to carry out the regional conservation partnership program under subtitle I of title XII of the Food Security Act of 1985 [
16 U.S.C. 3871 et seq.], as added by section 2401, to continue to carry out contracts and agreements referred to in paragraph (1) using the provisions of law and regulation applicable to such contracts and agreements as in existence on the day before the date of enactment of the Agricultural Act of 2014.”