7 C.F.R. § 4279.232
(c) The maximum guarantee on the principal and Interest due on a loan guaranteed under this subpart will be determined as specified in paragraphs (c)(1) through (4) of this section.
(1) If the loan amount is equal to or less than $125 million, 80 percent for the entire loan amount unless all of the conditions specified in paragraphs (c)(1)(i) through (iii) of this section are met, in which case 90 percent for the entire loan amount.