HAER

Haer most commonly refers to HAER, the Historic American Engineering Record. HAER is a program of the United States National Park Service that documents historic engineering and industrial sites. Established in 1969 to preserve evidence of American engineering heritage, HAER complements other federal documentation programs such as HABS (Historic American Buildings Survey) and HALS (Historic American Landscapes Survey).

Documentation produced by HAER typically includes measured drawings, written histories, and photographs, creating a lasting record of a site's engineering significance. The records cover a wide range of resources, including bridges, canals, factories, mills, rail yards, dams, and power facilities.

Access and availability: HAER records are maintained by the National Park Service and the Library of Congress and are publicly accessible through online catalogs and digital collections. Many items are digitized and searchable in the Library of Congress Prints & Photographs Online Catalog and related portals.

Other uses: The acronym HAER is primarily associated with the U.S. program. In other contexts, haer may appear as part of names or in non-English languages, but there is no widely recognized alternative meaning in English. When referring to the U.S. program, using the capitalized form HAER is standard.