7 CFR § 1726.401 - Material contract closeout.
(a) Delivery inspection. The borrower (acting through its engineer, if applicable) will verify that all materials are delivered in proper quantities, in good condition, and in compliance with applicable specifications.
(b) Closeout documents. The borrower (acting through its engineer, if applicable) will obtain from the supplier a “Buy American” certificate, RUS Form 213, any manufacturer's guarantee(s) and, if applicable, a copy of RUS Form 224, Waiver and Release of Lien. Closeout documents for materials contracts need not be submitted to RUS unless specifically requested by RUS on a case by case basis.
(c) Final payment. Upon completion of the actions required under paragraphs (a) and (b) of this section, the borrower shall make final payment to the supplier in accordance with the provisions of the material contract or written purchase order.