# National Organic Program; Amendments to the National List of Allowed and Prohibited Substances per April 2018 NOSB Recommendations (Crops and Handling)
> **Agricultural Marketing Service** · Final rule. · Published 2019-10-23 · Effective 2019-11-22 · 84 FR 56673
## Document
- **Document number:** 2019-23035
- **Category:** organic
- **Sub-agency:** Agricultural Marketing Service
- **Federal Register citation:** 84 FR 56673
- **CFR reference:** 7 CFR 205
- **Publication date:** 2019-10-23
- **Effective date:** 2019-11-22
- **USDA docket:** Document Number AMS-NOP-18-0051
## Abstract

This final rule amends the National List of Allowed and Prohibited Substances (National List) section of the United States Department of Agriculture's (USDA's) organic regulations to implement recommendations submitted to the Secretary of Agriculture (Secretary) by the National Organic Standards Board (NOSB). This rule adds elemental sulfur for use as a molluscicide in organic crop production, adds polyoxin D zinc salt to control fungal diseases in organic crop production, and reclassifies magnesium chloride from an allowed synthetic to an allowed nonsynthetic ingredient in organic handling.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/10/23/2019-23035/national-organic-program-amendments-to-the-national-list-of-allowed-and-prohibited-substances-per)
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