7 C.F.R. § 1710.602
(b) The Administrator may agree to an extension of the fund advance period for loans if the borrower demonstrates, to the satisfaction of the Administrator, that the loan funds continue to be needed for approved loan purposes (e.g., facilities included in a RUS approved construction work plan). Policies for extension of the fund advance period following certain mergers, consolidations, and transfers of systems substantially in their entirety are set forth in 7 CFR 1717.156.
(1) To apply for an extension, the borrower must make a request to RUS prior to the last date for advance as noted in the borrower's loan documents and provide, the following: