Although retailers are exempt from the requirement of being certified, they must still keep sufficient records demonstrating compliance to the standards. Records should include date of purchase, source, quantities, and organic certificates listing the specifics for organic products you purchase. Records should also include documentation of methods used for prevention of commingling and contact with prohibited substances, such as sanitizers, pest control materials, and non-organic products. Records are very important if the organic status of a product sold by you is ever questioned. Maintenance of records may serve to lessen your liability by proving you have used due diligence to preserve organic integrity.