9 C.F.R. § 114.12
Link to an amendment published at 83 FR 11143, Mar. 14, 2018.
Each serial or subserial of biological product prepared in a licensed establishment shall be given an expiration date determined in accordance with the requirements provided in § 114.13 or § 114.14. A licensed biological product shall be considered worthless under the Virus-Serum-Toxin Act subsequent to the expiration date appearing on the label.
[41 FR 44687, Oct. 12, 1976]