27 CFR §20.180

1. (a)Requirement to keep record. A dealer shall keep a record when filling packages with specially denatured spirits. The dealer shall keep a separate record of packages for each formula of specially denatured alcohol and specially denatured rum.
2. (b)Information to be shown. The dealer shall show the following information on the record of packages filled—
   1. (1)Date packages filled;
   2. (2)Package identification number and number of packages in each identical lot filled, or the serial numbers;
   3. (3)Kinds of packages;
   4. (4)Wine gallons or liters;
   5. (5)Kind of specially denatured spirits and formula number; and
   6. (6)Proof, if the spirits were denatured at other than 190° proof.
3. (c)Filing. The dealer shall retain the record at the premises and shall file it according to the serial numbers or package identification numbers of the packages.