Federal agency under the U.S. Department of Agriculture managing national forests and conservation efforts. The agency administers 154 national forests and 20 national grasslands covering 193 million acres (780,000 km²) of land in 43 states, Puerto Rico, and the Virgin Islands. It manages about 25% of federal lands and is the sole major national land management agency not part of the U.S. Department of the Interior. The mission is to sustain the health, diversity, and productivity of the nation's forests and grasslands to meet the needs of present and future generations. Motto: 'Caring for the land and serving people.'