Relating to requirements for certain funding of aviation facilities and projects.

HB 4523 modifies Texas Transportation Code provisions to clarify funding rules for aviation facilities and projects. It exempts projects funded by specific legislative appropriations (directly allocated for that project) administered through a pass-through process by the department. This change removes a previous requirement (Section 21.114(b)) that applied to such projects. The bill directly affects aviation projects receiving state funds with targeted legislative appropriations, streamlining their funding administration. It takes effect September 1, 2025.