# In Vitro Tests for Serial Release
> **Animal and Plant Health Inspection Service** · Final rule. · Published 2014-05-30 · Effective 2014-05-30 · 79 FR 31021
## Document
- **Document number:** 2014-12550
- **Category:** plant-animal-health
- **Sub-agency:** Animal and Plant Health Inspection Service
- **Federal Register citation:** 79 FR 31021
- **CFR reference:** 9 CFR 113
- **Publication date:** 2014-05-30
- **Effective date:** 2014-05-30
- **USDA docket:** Docket No. APHIS-2014-0033
## Abstract

We are amending the "In vitro tests for serial release" regulations by removing a footnote that refers to one method to calculate the relative antigen content of inactivated veterinary biological products and relative potency calculation software available from Veterinary Services' Center for Veterinary Biologics (CVB). CVB will no longer provide or update the software and the written method for using the software will no longer be used. This action will update the regulations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/05/30/2014-12550/in-vitro-tests-for-serial-release)
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