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Need to submit a project? Use THC’s eTRAC system to submit projects requiring review under Section 106 of the National Historic Preservation Act and/or the Antiquities Code of Texas, or to apply for an Archeological Permit. For other review types, please visit What to Send for a Project Review.

Complying With Laws to Protect Historic Properties

Cultural resources such as buildings or artifacts are tangible remains of our heritage that remind us of important periods of history. Recognizing the need to document and preserve these ties to our past, both the federal government and the state of Texas enacted laws to protect significant historic buildings and archeological sites from damage due to construction. The topics in this portion of the Texas Historical Commission (THC) website provide information on the National Historic Preservation Act (NHPA), the Antiquities Code of Texas, and other provisions of the Texas Government Code, and describe the process by which the THC assists project sponsors in complying with these statutes.

Mission Concepcion in San Antonio

Section 106 of the National Historic Preservation Act

Federal agencies are required to consult with the THC, other stakeholders, and the public to take into account the effects of their undertakings on historic properties.



Abilene High School

Antiquities Code of Texas

State agencies and political subdivisions of the state are required to notify the THC of projects that may affect archeological sites or historic properties.


State Antiquities Landmarks

State Antiquities Landmarks, the highest level of state designation, require a permit for work beyond routine maintenance to designated buildings and structures, and any work that involves ground disturbance.




Recorded Texas Historic Landmarks

RTHLs, part of the historical marker program, require notification of proposed exterior modifications at least sixty days before work commences.


County Courthouses

The Courthouse Law protects buildings that serve or have served as the county courthouse by requiring notification of proposed changes. Historic designations and preservation easements also protect historic courthouses.  

Ashton Villa in Galveston

Preservation Covenants and Easements

Historic preservation covenants and easements are voluntary legal agreements made between a property owner and a qualified organization to protect a significant historic property, landscape, or archeological site by restricting future development of the property.



Average number of projects reviewed per year since 2008 by Texas Historical Commission review staff

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