U.S. citizens or permanent residents who volunteer at least 250 hours with any federal agencies that participate in the Interagency Pass Program qualify for a free interagency volunteer pass, valid for one year from the month of issue. This pass is honored at all Forest Service, National Park Service, Bureau of Land Management, Bureau of Reclamation, and U.S. Fish & Wildlife Service sites charging standard amenity or entrance fees. Individuals should contact their volunteer coordinator for more information.