7 CFR §1786.159

1. (a)Upon receipt of the prepayment agreement, the borrower may submit, pursuant to the terms of the prepayment agreement, a closing request which shall request a closing date no less than 30 business days from the date of the request.
2. (b)The Government will respond to the borrower's closing request by delivering a preclosing notice to the borrower not less than 10 business days prior to the date which the Government, after reviewing the borrower's closing request, selects as a closing date.