The district maintains the grounds around the historical markers on TxDOT right-of-way.

If the historical marker is damaged or vandalized, THC is responsible for cleaning, repair, or providing a new replacement marker. The district should notify THC’s chief historian of the need for maintenance (cleaning, etc.) or replacement. (THC’s phone number is 512-463-5853.) THC then works directly with the local county historical commission, who is responsible for cleaning or replacing the marker. Replacement markers must conform to the approved standard design described under “Design and Installation of Markers” above.