Relating to the authority and responsibilities of the Texas Historical Commission; authorizing fees.

Added authority for the executive director to negotiate contracts without competitive bidding when resoliciting would be unlikely to succeed, increase costs, delay critical needs, or when the vendor meets original solicitation requirements.

Created a historic infrastructure sustainability trust fund outside the state treasury to generate earnings for maintaining and restoring historic sites, with restrictions on how funds can be used.

Established new affiliated nonprofit organizations (Friends of Texas Historical Commission and Washington-on-the-Brazos Historical Foundation) to provide services, fundraising, and financial support for commission activities and specific historic sites.

Reorganized and expanded the list of historic sites under commission jurisdiction from 26 to 40 sites, including renumbering and clarifying site names.

Added new definitions for affiliated nonprofit organizations and expanded the scope of Subchapter A-1 to include multiple nonprofit entities supporting commission activities.

Set the effective date of the Act to September 1, 2025, with specific provisions for contracts and fund distributions only applying to actions on or after that date.