Materials

Organic Materials Review Institute (OMRI)
WSDA Materials Lists and Registration
CDFA Fertilizing Materials Program
US Environmental Protection Agency (EPA)

Organic Materials Review Institute (OMRI)

OMRI is the industry standard for organic production materials verification. Visit their online listings often for the most up-to-date information on which types and brands of products are available for organics.

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WSDA Materials Lists and Registration

 Washington State Department of Agriculture (WSDA) Materials Lists and Materials Registration services.

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CDFA Fertilizing Materials Program

 This database contains all labels reviewed by the California Department of Food and Agriculture (CDFA) Fertilizing Materials Program. 

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US Environmental Protection Agency (EPA)

 EPA leads the nation's environmental science, research, education and assessment efforts. The mission of the Environmental Protection Agency is to protect human health and the environment. Since 1970, EPA has been working for a cleaner, healthier environment for the American people.

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