27 C.F.R. § 40.166
Where a check or money order tendered with any return, whether semi-monthly or prepayment, for payment of tax on tobacco products is not paid on presentment, where a manufacturer fails to remit with the return the full amount of tax due thereunder, or where a manufacturer is otherwise in default in payment of tax on tobacco products under the internal revenue laws or this chapter, during the period of such default and until the appropriate TTB officer finds that the revenue will not be jeopardized by the deferred payment of tax pursuant to the provisions of this part, no tobacco products shall be removed subject to tax until the tax thereon has first been paid as provided in §40.167. Any remittance made during the period of a default shall be in cash, or in the form of a certified, cashier's, or treasurer's check drawn on any bank or trust company incorporated under the laws of the United States, or under the laws of any State, Territory, or possession of the United States, or in the form of a U.S. postal money order or other money order, and defined in §70.61 of this chapter (payment by check or money order), or shall be delivered in the form of an electronic fund transfer message as provided in §40.165a.
27 C.F.R. § 40.166
68A Stat. 777, 72 Stat. 1417; 26 U.S.C. 6311 , 5703 ; Aug. 16, 1954, ch. 736, 68A Stat. 707 ( 26 U.S.C. 5703 ); Aug. 16, 1954, ch. 736, 68A Stat. 777 ( 26 U.S.C. 6311 )