7 C.F.R. § 3431.22
(b) The Secretary may waive any service or payment obligation incurred by a program participant whenever compliance by the program participant is impossible or would involve extreme hardship to the program participant and if enforcement of the service or payment obligation would be against equity and good conscience.
(1) Compliance by a program participant with a service or repayment obligation will be considered impossible if the Secretary determines, on the basis of information and documentation as may be required: