The mission of the National Organic Program, part of USDA’s Agricultural Marketing Service (AMS), is to protect the integrity of organic products in the U.S. and around the world.
This means creating clear and enforceable standards that protect the organic integrity of products from farm to table. Consumers trust and look for the USDA organic seal because they know that USDA stands behind the standards that it represents.
Source: USDA Blog » Supporting Organic Integrity with Clear Livestock and Poultry Standards