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Based on previous public input and recommendations from the National Organic Standards Board (NOSB), on January 17, 2018, USDA’s Agricultural Marketing Service published a proposed rule in the Federal Register to amend the National List.
More information on how and why substances are added or removed from the National List is available on The National List page of the AMS website.
In general, synthetic substances are prohibited for crop and livestock production unless specifically allowed and non-synthetic substances are allowed for crop and livestock production unless specifically prohibited. The National List identifies those synthetic substances that may be used and the natural substances that may not be used in organic crop and livestock production.
The proposed rule would:
- Add 16 substances to the list of those allowed in organic production and handling, providing new tools for producers and handlers in the organic industry;
- Prohibit 1 substance (ivermectin) currently allowed in organic livestock production, because of the availability of less toxic alternatives;
- List a natural pesticide (rotenone) as prohibited to align with U.S. Environmental Protection Agency (EPA) regulations; and
- Change 17 substances already on the National List to reflect current farming or processing practices and needs. For example, expanding the allowance for synthetic vitamins to include injectable vitamins for livestock.