27 CFR 26.164a: a Package gauge record.

When required in this part, with respect to Puerto Rican spirits, a package gauge record shall be prepared to show:

(a) The date prepared;

(b) The related transaction form and its serial number;

(c) The producer or rectifier (processor) of the spirits, and his name, address, and plant registration number; and

(d) For each package, the:

(1) Package identification or serial number;

(2) Kind of spirits;

(3) Gross weight;

(4) Tare;

(5) Net weight;

(6) Proof gallons; and

(7) Proof.