The U.S. Department of Agriculture (USDA) provides leadership on food, agriculture, natural resources, rural development, nutrition, and related issues based on public policy, the best available science, and effective management. Established in 1862, the USDA has a vision to provide economic opportunity through innovation, to promote agriculture production that better nourishes Americans, and to preserve natural resources. The USDA consists of 29 agencies and offices, including the Office of Inspector General (OIG), which conducts audits, investigations, and reviews to promote economy, efficiency, and integrity in USDA programs and operations.