Unitary authority
A unitary authority is a type of local authority that has a single tier and is responsible for all local government functions within its area or performs additional functions which elsewhere in the relevant country are usually performed by national government or a higher level of sub-national government.
Typically unitary authorities cover towns or cities which are large enough to function independently of county or other regional administration. Sometimes they consist of national sub-divisions which are distinguished from others in the same country by having no lower level of administration.
Canada
In Canada, each province creates its own system of local government, so terminology varies substantially.In certain provinces there is only one level of local government in that province, so no special term is used to describe the situation.
British Columbia has only one such municipality, Northern Rockies Regional Municipality, which was established in 2009.
In Ontario the term single-tier municipalities is used, for a similar concept. Their character varies, and while most function as cities with no upper level of government, some function as counties or regional municipalities with no lower municipal subdivisions below them. They exist as individual census divisions, as well as separated municipalities.
Central Europe
In Germany, kreisfreie Stadt is the equivalent term for a city with the competences of both the Gemeinde and the Kreis administrative level. The directly elected chief executive officer of a kreisfreie Stadt is called Oberbürgermeister.The British counties have no directly corresponding counterpart in Germany. This German system corresponds to statutory cities in Austria and in the Czech Republic.
Denmark
Until 1 January 2007, the municipalities of Copenhagen, Frederiksberg and Bornholm were not a part of a Danish county.France
The city of Paris works like a department council and a municipal council. Administratively at state level, it is both a department with a single departmental arrondissement, however the prefecture of Paris is split between the prefecture of police of Paris and the department prefecture. As the department of Paris has no department council elected during departmental elections, it is not subdivided into cantons, but its 20 districts are considered equivalent.The department councils of the two departments of Corsica and of the region merged into a unitary authority, officially a collectivité territoriale. Its area of competence covers the whole administrative region and the two administrative departments.
The overseas departements and regions were all proposed to merge their single departmental council coexisting with their regional council on the same territory into a collectivité unique. The proposal was rejected by local referendum in Guadeloupe and in Réunion, but this occurred in Martinique and French Guiana whose former departemental and regional councils were merged into a single unitary authority named assemblée, elected during departmental elections. Mayotte with its newer status of department chose to keep this designation for its unitary authority, named departmental council, but which also has the competence of a regional council.
The Métropole de Lyon was created as a metropole from an earlier EPCI but gained the competences of the departmental council. The departmental council of Rhône only covers the rest of the administrative department. So the metropole is not a unitary authority, and no longer an EPCI, but it has a specific status, considered equivalent to a department council, except that its seats are elected during the municipal French elections, and that it is a territorial collectivity, with legal personality and fiscal autonomy.
New Zealand
In New Zealand, a unitary authority is a territorial authority that also performs the functions of a regional council. There are five unitary authorities; they are : Gisborne District Council, Nelson City Council, Tasman District Council, Marlborough District Council, and Auckland Council.The Chatham Islands, located east of the South Island, have a council with its own special legislation, constituted with powers similar to those of a regional authority.
Poland
In Poland, a miasto na prawach powiatu, or shortly powiat grodzki is a, typically big, city which is also responsible for district administrative level, being part of no other powiat. In total, 65 cities in Poland have this status.Taiwan
in Taiwan, in contrast to counties, have only one tier of local government. Unlike county-administered cities, they are independent of their associated county. The three cities are Chiayi, Keelung, and Hsinchu. Special municipalities, with the exception of a few mountain indigenous districts within them, are also unitary.United Kingdom
England
In England, "unitary authorities" are those local authorities set up in accordance with the Local Government Changes for England Regulations 1994 made under powers conferred by the Local Government Act 1992 to form a single tier of local government in specified areas and which are responsible for almost all local government functions within such areas. While outwardly appearing to be similar, single-tier authorities formed using older legislation are not unitary authorities thus excluding e.g. the Council of the Isles of Scilly or any other single-tier authority formed under the older legislation and not since given the status of a unitary authority.This is distinct from the two-tier system of local government which still exists in most of England, where local government functions are divided between county councils and district or borough councils. Until 1996 two-tier systems existed in Scotland and Wales, but these have now been replaced by systems based on a single-tier of local government with some functions shared between groups of adjacent authorities. A single-tier system has existed in Northern Ireland since 1973.
For many years the description of the number of tiers in UK local government arrangements has routinely ignored any current or previous bodies at the lowest level of authorities elected by the voters within their area such as parish or community councils; such bodies do not exist or have not existed in all areas.
Rest of the United Kingdom
The definitive description "unitary authority" is specific to England alone in UK legislation. Thus single-tier authorities elsewhere in the UK are not properly styled as unitary authorities; also their rights, privileges and responsibilities are not the same.Northern Ireland
Northern Ireland is divided into eleven districts for local government purposes. In Northern Ireland local councils have no responsibility for education, road building or housing. Their functions include waste and recycling services, leisure and community services, building control and local economic and cultural development. Since their reorganisation in 2015 councils in Northern Ireland have also taken on responsibility for planning functions. The collection of rates is handled by the Land and Property Services agency.Scotland
Local authorities in Scotland are unitary in nature but not in name. The Local Government etc. Act 1994 created a single tier of local government throughout Scotland. On 1 April 1996, 32 local government areas, each with a council, replaced the previous two-tier structure, which had regional, islands and district councils. Comhairle nan Eilean Siar uses the alternative Gaelic designation Comhairle. While the phrase "unitary authority" is not used in Scottish legislation, the term can be encountered in a few official publications and in use by United Kingdom government departments.Wales
Local authorities in Wales are unitary in nature but are described by the Local Government Act 1994 as "principal councils", and their areas as principal areas. Various other legislation includes the counties and county boroughs of Wales within their individual interpretations of the phrase "unitary authority" as an interpretive not a definitive description. In s.2 of the Act each council formed for a county is allocated the respective English and Welsh descriptions of "County Council" or "Cyngor Sir", each council formed for a County Borough is allocated the respective descriptions of "County Borough Council" or "Cyngor Bwrdeistref Sirol"; in all cases the shorter alternative forms "Council" or "Cyngor" can be used.United States
There are several types of single-tier governments in the United States. In the states of Connecticut, Rhode Island, and much of Massachusetts, county government has been abolished, and the municipalities are the only governing tier below the state government, though the former counties still exist in the ceremonial sense. In some areas, the reverse is true; for example, Howard County, Maryland and Arlington County, Virginia are examples of counties that, despite being densely developed, have no municipalities and are thus the only tier of general-purpose local government.In Virginia, all municipalities with city status are, by definition, independent from any county. Three other cities across the United States are also independent of any county government: Baltimore, Maryland, St. Louis, Missouri, and Carson City, Nevada. There are also several consolidated cities where the county government and municipal government are unified. San Francisco and Philadelphia are two examples, wherein the city and county are coterminous and have one singular governing body.