The Maryland Public Service Commission (PSC) is an independent administrative agency within the state government which regulates public utilities and certain taxi cab and other passenger services in Maryland. Similar to other state Public Utilities Commissions, the Maryland PSC regulates and sets rates for natural gas, electricity distribution, local telephone, water, and sewage disposal companies. The PSC also sets the tariff rates for pilot services for vessels and privately owned toll bridges, approves the construction of electric generating plants and overhead transmission lines with a voltage above 69 kV, and licenses retail natural gas and electricity suppliers. The PSC offices are located in Baltimore in the William Donald Schaefer Building.
The five PSC commissioners serving staggered terms are appointed by the Governor and approved by the Maryland General Assembly. By statute the commissioners must be representative of the state's regions and demographics. The current commissioners are W. Kevin Hughes (chairman), Harold D. Williams, Jeannette M. Mills, Michael T. Richard, and Anthony J. O'Donnell.
The PSC enforces the state statutes in the Public Utility Companies article of the Annotated Code of Maryland. Hearings on matters subject to the jurisdiction of the PSC are conducted before the Commission or by its hearing examiners. The PSC has an independent division hearing examiners which issue proposed orders, which may be appealed to the Commission. Most hearings are held in the PSC offices in Maryland, but state statutes require public hearings for some subject matter to be held in the county or municipality affected by the proceeding. Final orders are issued by the Commission and are subject to judicial review in the state circuit courts. The PSC publishes a selection of its orders each year along with its annual report to the Maryland General Assembly in its own case reporter.