Maryland Public Service Commission intrastate in Maryland must obtain a certificate to operate in Maryland. Carriers operating in Montgomery or Prince George's Counties that will also operate interstate into Washington, DC, or the cities and counties in Virginia that border Washington must also register with the Washington Metropolitan Area Transit Commission. Maryland Public Service Commission 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 tariff rates for natural gas, electricity distribution,
Capital Plaza Mall hub---Landover Mall. Capital Plaza's prime location along Maryland Route 450 and the Baltimore-Washington Parkway made it ideal for shoppers by both automobile and public transit. Local bus service to Capital Plaza operated along Annapolis Road linking the plaza with shoppers from the nearby neighborhoods of College Park, Hyattsville, Riverdale, Rogers Heights, Edmonston, Bladensburg, Colmar Manor, Cottage City, Brentwood, Mount Rainier, Villa Heights, Cheverly, Landover Hills, Landover, New Carrollton, Lanham, Glenarden, and even certain pockets of Washington, DC (provided by the old WMA Transit Company, until later becoming the Metrobus system). In the late 1970s-1980s, Capital Plaza even featured a Trailways