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Preservation Partners

Tribal Historic Preservation Officers (THPO)

Tribal Historic Preservation Officers (THPOs) are officially designated by a federally-recognized Indian tribe to direct a program approved by the National Park Service. THPOs assume some or all of the functions of State Historic Preservation Officers on Tribal lands.

List of Tribal Historic Preservation Officers in California


Advisory Council on Historic Preservation

The Advisory Council on Historic Preservation  (ACHP) promotes the preservation, enhancement, and sustainable use of our nation’s diverse historic resources, and advises the President and the Congress on national historic preservation policy.


California Preservation Foundation

The California Preservation Foundation (CPF) is California's only statewide non-profit education, advocacy and membership organization for historic preservation.


California Council for the Promotion of History

The California Council for the Promotion of History (CCPH) provides a forum for professionals, advocates, and enthusiasts to share knowledge and ideas about California's history and historical resources.


National Alliance of Preservation Commissions

The mission of the National Alliance of Preservation Commissions (NACP) is to build strong local preservation programs through education, advocacy, and training.


National Council of State Historic Preservation Officers

The National Conference of State Historic Preservation Officers (NCSHPO) is the professional association of the State government officials who carry out the national historic preservation program as delegates of the Secretary of the Interior pursuant to the National Historic Preservation Act of 1966, as amended (NHPA) (16 USC 470).


National Park Service Department of the Interior

The National Parks Service (NPS) is part of a national preservation partnership working with American Indian tribes, states, local governments, nonprofit organizations, historic property owners, and others involved in the preservation and stewardship of our shared heritage. 


National Trust for Historic Preservation

The National Trust for Historic Preservation  (NTHP) is a private, nationwide nonprofit organization that  provides leadership, education, training and advocacy to save America's diverse historic places and revitalize communities.  

National Trust for Historic Preservation Western Regional Office  


Society for California Archaeology

The Society for California Archaeology (SCA) is a nonprofit scientific and educational organization that promotes professional standards and ethical guidelins for the practice of archaeology, and seeks to increase public appreciation and support for the conservation of California's archaeological resources.