Advisory Council on Historic Preservation
The Advisory Council on Historic Preservation is an independent federal agency created by the National Historic Preservation Act of 1966 (NHPA), and is the major policy advisor to the Government in the field of historic preservation.

National Center for Preservation Technology and Training
NCPTT promotes and enhances the preservation and conservation of prehistoric and historic resources in the United States for present and future generations through the advancement and dissemination of preservation technology and training.

Heritage Documentation Programs (HABS/HAER/HALS/CRGIS)
Heritage Documentation Programs administers HABS (Historic American Buildings Survey), the Federal Government's oldest preservation program, and companion programs HAER (Historic American Engineering Record), HALS (Historic American Landscapes Survey), and CRGIS (Cultural Resources Geographic Information Systems). Documentation produced through the programs constitutes the nation's largest archive of historic architectural, engineering, and landscape documentation.

National Register of Historic Places
The National Register is the Nation's official list of cultural resources worthy of preservation. Properties listed on the Register include districts, sites, buildings, structures, and objects that are significant in American history, architecture, archeology, engineering, and culture.