Use the clause AGAR 452.232-70, Limitation of Government's Obligation, in solicitations and resultant incrementally funded fixed-price contracts.
Funds appropriated to USDA may be used for one-year contracts which are to be performed in two fiscal years so long as the total amount for such contracts is obligated in the year for which the funds are appropriated (7 U.S.C. 2209c).
The expenditure of any USDA appropriation for any consulting service through any contract, pursuant to section 3109 of Title 5 of the U.S. Code shall be limited to those contracts where such expenditures are a matter of public record and available for public inspection, except where otherwise provided under existing law, or under existing Executive Order issued pursuant to existing law (7 U.S.C. 2225a).