31 C.F.R. § 391.4 Documentary evidence.
Title 31 - Money and Finance: Treasury
(a) When late charges are waived, the debtor's administrative file shall be properly documented with a memorandum. The memorandum shall contain a brief narrative statement describing the circumstances leading to the waiver and the reason(s) for granting the waiver. (b) A credit report or a financial statement sworn to by the debtor may be required before waiver of late charges is approved for a compromise, suspension, or termination, except where the cost of obtaining such a report or statement exceeds the late charges due.
Title 31: Money and Finance: Treasury
PART 391—WAIVER OF INTEREST, ADMINISTRATIVE COSTS, AND PENALTIES
§ 391.4 Documentary evidence.

