27 C.F.R. § 70.75
(a) If the appropriate TTB officer believes that the collection of any tax imposed under provisions of 26 U.S.C. enforced and administered by the Bureau will be jeopardized by delay, the appropriate TTB officer must, whether or not the time otherwise prescribed by law for filing the return or paying such tax has expired, immediately assess such tax, together with all interest, additional amounts and additions to the tax provided by law. An appropriate TTB officer will make an assessment under this section if collection is determined to be in jeopardy because at least one of the following conditions exists.
(d) For provisions relating to stay of collection of jeopardy assessments, see § 70.76 of this part.
(26 U.S.C. 6862 and 6863)
[T.D. ATF-301, 55 FR 47612, Nov. 14, 1990, as amended by T.D. ATF-450, 66 FR 29025, May 29, 2001]