General Service Area is a term used by the Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 province of Nova Scotia

Nova Scotia

Nova Scotia is one of Canada's three Maritime provinces and is the most populous province in Atlantic Canada. The name of the province is Latin for "New Scotland," but "Nova Scotia" is the recognized, English-language name of the province. The provincial capital is Halifax. Nova Scotia is the...

 to describe the boundaries of areas that are communities or place names in Nova Scotia.

A General Service Area is located within a municipality which can be either an incorporated county, a municipal district, an incorporated town, or a regional municipality

Regional municipality

A regional municipality is a type of Canadian municipal government similar to and at the same municipal government level as a county, although the specific structure and servicing responsibilities may vary from place to place...

 (Nova Scotia does not have cities).

The Government of Nova Scotia

Government of Nova Scotia

The Government of Nova Scotia refers to the provincial government of the Canadian province of Nova Scotia. Its powers and structure are set out in the Constitution Act, 1867....

 designates General Service Areas by means of the Department of Service Nova Scotia and Municipal Relations. The Nova Scotia Geomatics Centre administers place names in Nova Scotia as well as the Nova Scotia civic address file; the Halifax Regional Municipality administers its own civic addressing through the Civic Addressing Office.