After rigorous testing, the Organic Materials Review Institute approved the Nano-Gro™ product for inclusion in their List of Organic Materials. The Organic Materials Review Institute (OMRI) is a national nonprofit organization that determines which input products are allowed for use in organic production and processing. OMRI Listed—or approved—products may be used on operations that are certified organic under the USDA National Organic Program. The product was listed with no restrictions on use. To see a listing of the product on the OMRI website follow this link, OMRI Products List (Follow the instructions on the page to download the PDF format file).

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For a larger copy of the OMRI Certificate please click here.