USDA Proposes Expanding Allowance for Elemental Sulfur & Reclassifying Potassium Acid Tartrate

Response times may be slow due to the wildfires affecting Santa Cruz County and Covid-19. Organic compliance deadlines and inspections will be delayed for businesses affected by these crises. Read the latest updates on the Northern California wildfires, and visit our Covid-19 webpage to find pandemic-specific information »

Los tiempos de respuesta serán lentos debido a los incendios forestales afectando al condado de Santa Cruz y COVID-19. Los plazos de cumplimiento orgánico y las inspecciones se retrasarán para los negocios afectados por estas crisis.  Lea las últimas actualizaciones sobre los incendios forestales del norte de California y visite nuestra página web de Covid-19 para encontrar información específica a la pandemia »

USDA Agricultural Marketing Service (AMS) published a proposed rule to amend the National List of Allowed and Prohibited Substances (National List). The proposed rule is based on public input and recommendations from the National Organic Standards Board (NOSB).
AMS will accept public comments on the proposed rule until June 29, 2018. Comments can be submitted via
At their Fall 2017 meeting in Jacksonville, Florida, the National Organic Standards Board (NOSB) recommended that AMS add elemental sulfur to the National List to treat livestock and livestock housing. Elemental sulfur is currently allowed for use in the production of organic crops as an insecticide, for plant disease control, and as a plant or soil amendment. 
NOSB also recommended reclassifying potassium acid tartrate as an agriculturally derived and non-synthetic. Potassium acid tartrate is derived from wine grapes and is a by-product of wine production. CCOF supported the reclassification of potassium acid tartrate in oral comments to the board.
For questions, please contact Robert Pooler, Standards Division, USDA AMS National Organic Program at (202) 720-3252.