In Maryland, three forms of government exist: county commissioners, code home rule, or charter.
County Commissioners: Under the county commissioners form of government, the General Assembly is authorized to legislate for a county. While a board of county commissioners exercises both executive and legislative functions defined by State law, and may enact ordinances, its legislative power is limited to those areas authorized by the General Assembly, enabling legislation, or public local laws.
Calvert, Carroll, Garrett, St. Mary’s, Somerset, and Washington.
Code Home Rule: Since 1915, counties have had the option of governing under code home rule, which enables them to exercise broad local legislative authority.
Allegany, Caroline, Charles, Kent, Queen Anne’s, and Worcester.
Charter. The charter government separates the executive branch from the legislative branch. Most typically, it consists of a county executive and a county council.
Anne Arundel, Baltimore, Cecil, Dorchester, Frederick, Harford, Howard,
Montgomery, Prince George’s, Talbot, and Wicomico.