Heritage Documentation ProgramsA federal program that documents important architectural, engineering and industrial sites throughout the United States and its territories.
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.
