The National Park Service's Historic Preservation Standards and Guidelines
To encourage consistent practices, the National Park Service has developed standards and guidelines that guide preservation work at the national, tribal, state, and local levels. In some cases, these standards can be regulatory. The guidelines explain the standards. The flagship of these preservation guideposts is The Secretary of the Interior's Standards and Guidelines for Archeology and Historic Preservation. These standards and guidelines complement federal historic preservation laws.
The Secretary of the Interior's Standards and Guidelines for Architectural and Engineering Documentation
The Secretary of the Interior's Standards for Historic Vessel Preservation Projects, with Guidelines for Applying the Standards (pdf, 12 MB)
- Rehabilitation Standards and Guidelines for the Historic Preservation Tax Incentive Program
- Illustrated Guidelines for Rehabilitating Historic Buildings
- Illustrated Guidelines on Sustainability for Rehabilitating Historic Buildings
- The Secretary of the Interior's Standards for the Treatment of Historic Properties, with Guidelines for Preserving, Rehabilitating, Restoring, and Reconstructing Historic Buildings