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USDA/AMS RIN: 0581-AE25 Publication ID: 2026 
Title: National List of Allowed and Prohibited Substances: Recommendations From the NOSB Fall 2021, Fall 2022 and Fall 2024 Meetings (Crops and Livestock) (AMS-NOP-22-0029) 
Abstract:

The National List identifies the synthetic substances that may be used in organic crop and livestock production as well as the nonsynthetic (natural) substances that may not be used. It also identifies the nonorganic substances that may be used in or on processed organic products. This proposed rule would amend the National List section of the organic regulations related to organic crop and livestock production. The rule would provide additional tools to organic producers, allowing carbon dioxide in organic crop production and meloxicam as a pain treatment in organic livestock production. Additionally, the rule would remove overly burdensome restrictions for methionine, an amino acid, in organic poultry feed and would affirm that sodium nitrate may be used as a fertilizer in organic crop production, with certain conditions to protect soil quality. Amendments in this proposed rule are based on recommendations from the National Organic Standards Board (NOSB) from the Fall meetings in 2021, 2022, and 2024.

 
Agency: Department of Agriculture(USDA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
EO 14192 Designation: Not subject to, not significant 
CFR Citation: 7 CFR 205   
Legal Authority: 7 U.S.C. 6501 to 6524   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  03/23/2026  91 FR 13782   
NPRM Comment Period End  05/22/2026 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Erin Healy
Director, Standards Division, USDA National Organic Program
Department of Agriculture
Agricultural Marketing Service
1400 Independence Avenue SW,
Washington, DC 20250
Phone:202 617-4942
Email: erin.healy@usda.gov