Organic input materials
Determining which input materials are allowed for use in organic agriculture can be a daunting task. Fortunately there are resources to help make this task easier for you. WSDA Organic Program and the Organic Material Review Institute both publish lists of materials they have reviewed and approved for use in organic agriculture. While these inputs have been approved for use, it is important to check the lists and ensure that you are using the material for the reviewed purpose and following all listed restrictions.