Cooperating Associations, also known as interpretive associations or natural history associations, support the interpretive, educational and scientific programs and services of governmental land management agencies such as the National Park Service, USDA Forest Service, US Fish and Wildlife Service, Bureau of Land Management, US Army Corps of Engineers, or state park departments.
Associations assist in the production of site-specific products, distribute educational and scientific publications produced by agencies, donate materials for use in interpretive programs and exhibits, and work to secure grants and funding. This is accomplished through bookstore sales, membership support, publication and product development, research funding, and other educational programs and activities. They must hold a federally tax-exempt, not-for-profit status under Section 501(c)(3) of the Internal Revenue Code.
Cooperating associations recognize the public as an important resource for the preservation of public land, and help citizens to better understand land management issues by providing information and services in visitor centers and other locations. By doing so, cooperating associations contribute to the understanding of a variety of stewardship issues, cultivate an appreciation of public lands, and help reduce adverse impacts on natural and cultural resources.
After the founding of the National Park Service in 1916 several non-profit organizations were formed to support educational and interpretive programs and projects not covered by government funding, the first being the Yosemite Association which was formed in 1923. Several similar nonprofit organizations became known as cooperating associations by 1936, and were formally recognized by Congress in 1946 (Public Law 79-633).
Within the National Park Service, authority to designate or affiliate with a cooperating association is assigned to the regional directors and cannot be re-delegated. In the case of organizations serving multiple regions, which includes Eastern National and Western National Parks Association, the Director of the National Park Service signs the agreements. In the fiscal year 2008, 71 associations operated more than 100 outlets in 325 units of the National Park Service.