The Department of Agriculture oversees food and natural resource issues. It operates Agricultural Research Service (ARS), which solves problems related to human nutrition and crop and livestock production and protection. The department s Farm Service Agency administers environmental, conservation and emergency assistance programs for farmers and ranchers. The Department of Agriculture s Rural Development division works with low-income individuals and state, local and Indian tribal governments. It also offers community development services. The department operates Foreign Agricultural Service (FAS), which is responsible for collecting, analyzing and disseminating information about trade trends and market opportunities. The Department of Agriculture s Center for Nutrition Policy and Promotion develops and promotes dietary guidance.