Relating to the authority of a special district to exercise certain powers and duties following municipal disannexation of certain areas.

HB 4373 clarifies that special districts created through strategic partnerships retain full authority to provide services in areas later disannexed by a municipality. It directly affects special districts and municipalities that disannex territory, ensuring the district can continue exercising all legal powers in the disannexed portion regardless of prior agreements. The key provision (added to Local Government Code Section 43.1463) overrides any existing strategic partnership or other agreements between the district and the disannexing city. This prevents disannexation from disrupting essential services in the remaining district area. The bill takes effect September 1, 2025, unless passed with a two-thirds vote for immediate implementation.