# National Organic Program; National List of Allowed and Prohibited Substances-Crops and Handling From October 2019 NOSB
> **Agricultural Marketing Service** · Final rule. · Published 2022-03-23 · Effective 2022-04-22 · 87 FR 16371
## Document
- **Document number:** 2022-05870
- **Category:** organic
- **Sub-agency:** Agricultural Marketing Service
- **Federal Register citation:** 87 FR 16371
- **CFR reference:** 7 CFR 205
- **Publication date:** 2022-03-23
- **Effective date:** 2022-04-22
- **USDA docket:** Document Number AMS-NOP-19-0102
## Abstract

This rule amends the National List of Allowed and Prohibited Substances (National List) section of the United States Department of Agriculture's (USDA) organic regulations to implement recommendations submitted to the Secretary of Agriculture (Secretary) by the National Organic Standards Board (NOSB). This rule allows the following substances for organic production: potassium hypochlorite to treat irrigation water used in organic crop production and fatty alcohols for sucker control in organic tobacco production. This rule also removes the listing for dairy cultures, as it is redundant with an existing listing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/03/23/2022-05870/national-organic-program-national-list-of-allowed-and-prohibited-substances-crops-and-handling-from)
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