Viruses, Serums, Toxins, and Analogous Products; Standard Requirements; Addition of Terminology To Define Veterinary Biologics Test Results

We are amending the veterinary biological product regulations by defining the terms used for reporting the results of tests performed on veterinary biological products. Licensees and permittees of veterinary biological products must conduct these tests and report the results to the Animal and Plant Health Inspection Service so that the Agency can determine if the products are eligible for release. Defining these terms will clarify the circumstances under which the results of a prescribed test can be reported as satisfactory, unsatisfactory, inconclusive, or a No Test. We are also removing several obsolete testing standard requirements from the regulations. These changes will update our regulations and improve communication between regulators and product licensees and permittees with respect to reporting test results.