Relating to cybersecurity for retail public utilities that provide water or sewer service.

HB 4231 amends two sections of the Texas Government Code to expand eligibility for state cybersecurity services. It adds "a retail public utility that provides water or sewer service" (defined under Water Code §13.002) to the list of entities eligible to receive these services under Section 2054.0525. The bill also modifies Section 2059.058 to allow the state department to provide network security services to these utilities via agreement. This directly affects water and sewer utilities by enabling them to access state cybersecurity support, though it does not mandate participation or funding. The bill focuses on expanding service access, not altering utility operations or creating new obligations.