Animal and Plant Health Inspection Service March 14, 2018 – Federal Register Recent Federal Regulation Documents

We are amending the regulations to clarify that the expiration date of a serial or subserial of a veterinary biologic should be computed from the date of the initiation of the first potency test. We are also requiring the expiration dating period (stability) of a product to be confirmed by conducting a real-time stability study with a stability-indicating assay, stability monitoring of products after licensing, and specifying a single standard for determining the expiration date for veterinary biologics