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OMRI Product Lists

Browse, download, and order the latest OMRI Products Lists. VIEW LISTS

Welcome to the Organic Materials Review Institute

OMRI’s mission is to cultivate organic integrity through knowledge and trust

  • We achieve this by:
  • Supporting certifiers with reliable expertise and a comprehensive knowledge hub for input material compliance.
  • Providing input manufacturers with thorough, transparent product reviews, and maintaining a publicly accessible and up-to-date list of allowed products.
  • Offering farmers and processors a dependable resource for approved inputs, expediting their path to market.
  • Assuring consumers with a recognizable seal that signifies compliance with organic standards.
  • Collaborating with regulatory bodies to share insights and exchange expertise that informs policy.

OMRI at a glance

OMRI is a 501(c)(3) nonprofit organization that provides an independent review of products — such as fertilizers, pest controls, livestock health care products — intended for use in certified organic production and processing. When companies apply, OMRI reviews their products against the organic standards. Acceptable products are OMRI Listed and appear on the OMRI Products Lists. OMRI also provides technical support and training for professionals in the organic industry.

carrotcarrotArticles and Announcements

Eugene, OR—January 22, 2026—OMRI has revised the OMRI Generic Materials List© (GML) and OMRI Canada Permitted Substances Categories© for review to the NOP and COR regulations. 

All revisions are effective January 22, 2026.

Summary of changes:

Eugene, OR—January 26, 2026—The Organic Materials Review Institute (OMRI) has launched its newly redesigned website, OMRI.org, providing users with an improved and more intuitive experience for accessing information about materials used in organic production and processing.

Eugene, OR—October 14, 2025—A new collaboration between the Organic Materials Review Institute (OMRI) and CABI BioProtection Portal is helping operators and certifiers more easily identify registered, compliant products for organic use.

Products on the CABI BioProtection Portal that meet the standards for use in organic systems now display the OMRI logo, allowing users to quickly see if a biological control product is approved by OMRI. The OMRI logo, which can now be found on over 160 biocontrol and biopesticide products on the Portal, demonstrates these products have undergone a rigorous review and meet the U.S. National Organic Program (USDA-NOP) standards.