Those who work with items such as electrical wiring, transformers and fuse boxes in either residential or commercial properties--i.e., electricians, residential wiremen or other electrical contractors--are licensed at some level in all 50 states. In the large majority of states, there is a state board that regulates the licensing of electricians, but in some states the regulation of electrical contractors is left to county or municipal governments.
State-wide Electrician Licensing
States that require licensing of electricians at the state level include Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Kentucky. Louisiana, Maryland (Master Electrician license only), Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin and Wyoming, plus the District of Columbia.
County/City Electrician Licensing
States that don't license electricians state-wide, but instead allow local governments to set licensing standards, include Illinois, Indiana, Maryland (all electrician licenses except Master Electrician), New York and Pennsylvania.
State Electrical Contractor Boards
Most states set up an electrical contractor board to oversee the licensing and regulation of all types and levels of electricians and electrical workers. Electrical contractor boards are usually composed of experienced (often retired) Master Electricians, and occasionally an electrical engineer or safety expert, as well as lay members representing the public.
County and City Profesional Licensing or Contractor Departments
States that don't regulate electrical contractors at the state level allow individual cities and counties to set electrician licensing standards. The task is usually undertaken by a specific department of the local government involved in licensing standards. These local licensing departments often model their standards on those of national organizations or larger state electrical contractor boards.