We verify that Sonoma Compost, Sonoma Organic HI-TEST Compost, Brown Rice, Mallard Plus, Vineyard Mulch, and Sonoma Feather-Lite Amended Soil are all currently listed as "Allowed" materials for use in organic production by the Organic Materials Review Institute (OMRI). Organizations such as California Certified Organic Farmers rely on OMRI to provide guidance on whether particular products are allowed inputs for certified organic farms.

Our compost is lab tested and satisfies all of the requirements of the state of California. Furthermore, it is produced in accordance with guidelines originally established by the California Compost Quality Council, (CCQF), now a part of the U.S. Composting Council.