9 CFR § 116.3 - Label records.
(a) Each licensee and permittee shall maintain a list of all approved labels currently being used. Each label shall be identified as to:
(1) Name and product code number as it appears on the product license or permit for the product;
(2) Where applicable, the size of the package (doses, ml, cc, or units) on which the label shall be used;
(3) Label number and date assigned; and
(4) Name of licensee or subsidiary appearing on the label as the producer.
(b) All labels printed shall be accounted for and an inventory maintained.