Borrowers must consult with RUS prior to entering into any contract for material, equipment, or construction if a construction work plan, general funds, loan or loan guarantee for the proposed work has not been approved. While the RUS staff will work with the borrower in such circumstances, nothing contained in this part is to be construed as authorizing borrowers to enter into any contract before the availability of funds has been ascertained by the borrower and all environmental review requirements in accordance with 7 CFR part 1970, have been met.