National Organic Program Standard
Coral mineral products meet the National Organic Program (NOP) Standard for use in Organic Agriculture Production as per:
Title 7, Subpart C, Paragraph 205.203 (d)-(2) Title 7: Agriculture
Subpart C: Organic Production and Handling Requirements
Paragraph 205.203: Soil fertility and crop management practice standard
(d) A producer may manage crop nutrients and soil fertility to maintain or improve soil organic matter content in a manner that does not contribute to contamination of crops, soil, or water by plant nutrients, pathogenic organisms, heavy metals, or residues of prohibited substances by applying:
(2) A mined substance of low solubility.
Follow this path to view standard: http://www.ams.usda.gov/AMSv1.0/nop