27 C.F.R. § 19.733
A proprietor may remove spirits from the bonded premises of an alcohol fuel plant, including the premises of a small plant, for transfer in bond to another alcohol fuel plant. A proprietor of an alcohol fuel plant may also receive spirits from another alcohol fuel plant. The following conditions apply to such transfers:
(e) Each proprietor must adhere to the requirements for transfers between alcohol fuel plants prescribed in §§ 19.734 through 19.736, as applicable.
(26 U.S.C. 5181, 5212)