April 2025
IOUs and WSCs: Notify the PUCT of CCN Boundary Extensions Are you an Investor-Owned Utility (IOU) or a Water Supply Corporation (WSC) extending service up to a quarter mile beyond your current Certificate of Convenience and Necessity (CCN) boundary? If so, you must notify the Public Utility Commission of Texas (PUCT) within 30 days of starting service in the area. According to Title 16 Texas Administrative Code (TAC), Section 24.229(a), you must notify the PUCT in writing and submit a map showing the area you are serving beyond your CCN. If you plan to extend service beyond this area, you must apply for a CCN amendment with the PUCT. Act now to ensure compliance and avoid any potential issues. Contact the PUCT today at DUO@puc.texas.gov to learn how to submit your documentation or to learn more about the CCN amendment process.
Which Agency Is It? The PUCT and the Texas Commission on Environmental Quality (TCEQ) work together on retail public water and sewer utility matters in Texas. The PUCT often gets questions from the public regarding which agency is responsible for certain water or sewer regulatory requirements. To help the regulated community, we have listed a few of the more common responsibilities below:
PUCT
TCEQ
Certificates of Convenience and Necessity (CCNs) Sale/Transfer/Merger Applications Water and Sewer Rate Setting Billing & Customer Service Critical Facility Filings Tariffs Temporary Management/Receivership
Public Water Systems Wastewater Discharge Permits Boil Water Notices Water Quality Concerns Drought Contingency Plans Emergency Preparedness Plans Temporary Management/Receivership
The agencies work together on temporary management/receivership matters of abandoned water and sewer utilities. Both have the authority to appoint a temporary manager over an abandoned utility or refer the utility to the Office of the Attorney General for the appointment of a receiver through District Court.