# National Organic Program; Amendment to the National List of Allowed and Prohibited Substances (Livestock)
> **Agricultural Marketing Service** · Final rule. · Published 2011-03-14 · Effective 2011-03-15 · 76 FR 13501
## Document
- **Document number:** 2011-5716
- **Category:** meat-poultry
- **Sub-agency:** Agricultural Marketing Service
- **Federal Register citation:** 76 FR 13501
- **CFR reference:** 7 CFR 205
- **Publication date:** 2011-03-14
- **Effective date:** 2011-03-15
- **USDA docket:** Document Number AMS-NOP-10-0051
## Abstract

The U.S. Department of Agriculture (USDA) is adopting as final, without change, an interim rule published in the Federal Register on August 24, 2010 (75 FR 51919). The interim rule amended the National List of Allowed and Prohibited Substances (National List) based upon a recommendation submitted to the Secretary of Agriculture (Secretary) by the National Organic Standards Board (NOSB) on April 29, 2010. Consistent with the recommendation from the NOSB, the interim rule revised the annotation of one substance on the National List, methionine, to extend its use in organic poultry production until October 1, 2012, at the following maximum levels of synthetic methionine per ton of feed: laying chickens--4 pounds; broiler chickens--5 pounds; turkeys and all other poultry--6 pounds.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/03/14/2011-5716/national-organic-program-amendment-to-the-national-list-of-allowed-and-prohibited-substances)
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