From the Wikipedia page 
The Tennessee Historical Commission (THC) is the State Historic Preservation Office for the U.S. state of Tennessee. Headquartered in Nashville, it is an independent state agency, administratively attached to the Department of Environment and Conservation. Its mission is to protect, preserve, interpret, maintain, and administer historic places; to encourage the inclusive diverse study of Tennessee's history for the benefit of future generations; to mark important locations, persons, and events in Tennessee history; to assist in worthy publication projects; to review, comment on and identify projects that will potentially impact historic properties; to locate, identify, record, and nominate to the National Register of Historic Places all properties which meet National Register criteria, and to implement other programs of the National Historic Preservation Act of 1966 as amended. The Tennessee Historical Commission also refers to the entity consisting of 24 Governor-appointed members and five ex officio members.
The website is .