# New Animal Drugs for Use in Animal Feeds; Removal of Obsolete and Redundant Regulations
> **Food and Drug Administration** · Final rule. · Published 2016-03-07 · Effective 2016-04-06 · 81 FR 11664
## Document
- **Document number:** 2016-04945
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 81 FR 11664
- **CFR reference:** 21 CFR 558
- **Publication date:** 2016-03-07
- **Effective date:** 2016-04-06
- **HHS docket:** Docket No. FDA-2003-N-0446 (formerly 2003N-0324)
## Abstract

The Food and Drug Administration (FDA) is removing regulations that required sponsors to submit data regarding the subtherapeutic use of certain antibiotic, nitrofuran, and sulfonamide drugs administered in animal feed as these regulations have been determined to be obsolete. FDA has other strategies for assessing the safety of antimicrobial new animal drugs with regard to their microbiological effects on bacteria of human health concern, and the only remaining animal drug use listed in these regulations is now listed elsewhere in the new animal drug regulations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/03/07/2016-04945/new-animal-drugs-for-use-in-animal-feeds-removal-of-obsolete-and-redundant-regulations)
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