27 C.F.R. § 40.232
A manufacturer of tobacco products may use tobacco products for experimental purposes without determination and payment of tax as set forth in this section.
(a) What are experimental purposes? Experimental purposes are operations or tests carried out under controlled conditions to discover an unknown scientific principle or fact, to gather or confirm data about a known scientific principle or fact, or to test manufacturing, packaging, or other such equipment. Examples of uses for experimental purposes are:
(d) Use outside factory. A manufacturer may remove tobacco products in bond for experimental purposes outside a factory. When tobacco products are shipped for experimental purposes outside the factory, the proprietor of the factory remains liable for the taxes imposed by 26 U.S.C. 5701 until the occurrence of one of the following events:
(e) Record of use. In addition to the records prescribed by § 40.183, a manufacturer who removes tobacco products in bond for experimental purposes outside a factory must prepare and maintain a record containing the following information:
(5) Disposition of any remaining tobacco products after the consignee's use.
(Approved by the Office of Management and Budget under Control Number 1512-0562)
(72 Stat. 1418, as amended; 26 U.S.C. 5704)
[T.D. ATF-478, 67 FR 19333, Apr. 19, 2002]