The mission of EPA is to protect human health and the environment. It develops and enforces environmental regulations.

The USDA administers programs related to agriculture, nutrition, rural development, forestry, rural utilities, and research.

AGRICOLA serves as the catalog and index to the collections of the National Agricultural Library, as well as a primary public source for world-wide access to agricultural information.

The Forest Service, established in 1905, manages national forests and grasslands for forestry, hiking, and other uses.

The Economic Research Service (ERS) conducts research on economic and policy issues related to food, agriculture, and rural areas of the U.S.

The U.S. Department of the Interior protects America’s natural resources and heritage, honors our cultures and tribal communities, and supplies the energy to power our future.

The Bureau of Land Management (BLM) aims to sustain the health, diversity, and productivity of America’s public lands for the use and enjoyment of present and future generations. It administers more public land – over 245 million surface acres – than any other Federal agency in the United States.

The Fish and Wildlife Service (FWS) has a mission of conserving, protecting and enhancing fish, wildlife, and plants and their habitats for the continuing benefit of the American people.

The EIA's collection of data and projections on energy usage and its effects on the environment.