49 C.F.R. § 89.31 Use of professional debt collection agencies.
Title 49 - Transportation
Debts over 90 days delinquent (see §89.21(b)(4)) may be turned over to professional debt collection agencies except for those debts owed by State and local governments, other Federal agencies, current employees, and other debts prohibited by statute from being turned over to commercial collection agencies.
Title 49: Transportation
PART 89—IMPLEMENTATION OF THE FEDERAL CLAIMS COLLECTION ACT
Subpart B—Collection of Claims
§ 89.31 Use of professional debt collection agencies.