Government Code §443.029

(a) Except as otherwise specifically provided by law, the board is responsible for the preservation and maintenance of the Governor's Mansion and the protection of the historical and architectural integrity of the mansion's exterior, interior, and grounds. This section does not limit the authority of the Texas Historical Commission under Chapter 191 , Natural Resources Code. (b) Except for a change in or to the Pease bedroom, the Sam Houston bedroom, the hallway, or the stairwell, a nonstructural decorative change in or to the private living and guest quarters of the governor and the governor's family on the second floor of the Governor's Mansion does not require the prior approval of the board or the Texas Historical Commission. (c) The Texas Historical Commission and the office of the governor may exercise the powers and shall perform the duties relating to the Governor's Mansion that are provided by applicable law, subject to the requirements of this section.