delinquent
The term delinquent means a claim or debt which has not been paid by the date specified by the agency unless other satisfactory payment arrangements have been made by that date, or, at any time thereafter, the debtor has failed to satisfy an obligation under a payment agreement or instrument with the agency, or pursuant to a Commission rule. For purposes of this subpart only, an installment payment under 47 CFR 1.2110(g) will not be considered deliquent until the expiration of all applicable grace periods and any other applicable periods under Commission rules to make the payment due. The rules set forth in this subpart in no way affect the Commission's rules, as may be amended, regarding payment for licenses (including installment, down, or final payments) or automatic cancellation of Commission licenses (see 47 CFR 1.1902(f)).