The Missouri Public Service Commission (PSC) is a state regulatory agency established in 1913 that oversees investor-owned utilities in Missouri. The commission regulates electric, natural gas, steam, water, sewer, and telecommunications providers to ensure safe, reliable, and reasonably priced utility services for Missouri residents. The PSC consists of five commissioners appointed by the governor and confirmed by the Missouri Senate. Commissioners serve six-year terms and make decisions on utility rates, service quality, infrastructure improvements, and consumer protection matters. The agency operates under Chapter 386 of the Missouri Revised Statutes. Key responsibilities of the PSC include conducting rate case hearings, investigating customer complaints, monitoring utility compliance with state regulations, reviewing infrastructure proposals, and ensuring utility companies maintain adequate service levels. The commission also oversees the Missouri Universal Service Fund and implements federal telecommunications regulations at the state level. The PSC maintains its headquarters in Jefferson City and operates through various departments including Utility Operations, General Counsel, Administration, and Staff Counsel. The commission regularly holds public hearings throughout the state to gather input on utility-related matters and maintains an online case filing system for public access to regulatory documents and proceedings.