Certified Historic Structure
- A building that is listed individually in the National Register of Historic Places -OR- a building that is located in a registered historic district and certified by the National Park Service as contributing to the historic significance of that district. The "structure" must be a building-not a bridge, ship, railroad car, or dam. (A registered historic district is any district listed in the National Register of Historic Places. A State or local historic district may also qualify as a registered historic district if the district and the enabling statute are certified by the Secretary of the Interior.)
