Certified Naturally Grown (CNG), "The Grassroots Alternative to Certified Organic", is a US-based farm assurance program certifying produce, livestock and apiaries for organic producers who sell locally and directly to their customers.[1] CNG was founded in 2002 by organic farmers Kate and Ron Khosla, as a simpler to administer and less expensive alternative to the USDA's National Organic Program (NOP) certification, using a production standard based on the NOP.[2][3] It is operated as a non-profit corporation, headquartered in Brooklyn, New York.[4]