27 C.F.R. § 646.141
The regulations in this part relate to delivery sales of smokeless tobacco and cigarettes, and to distributing, either in a single transaction or cumulatively, more than 10,000 cigarettes or 500 single-unit consumer-sized cans or packages of smokeless tobacco within a single month.
[ATF 2006R-1F, 91 FR 25131, May 8, 2026]