authorities

A combined authority (CA) is a type of local government institution introduced in England outside Greater London by the Local Democracy, Economic Development and Construction Act 2009. CAs are created voluntarily and allow a group of local authorities to pool appropriate responsibility and receive certain devolved functions from central government to regional government in order to deliver transport and economic policy more effectively over a wider area. In areas where local government is two-tier, both must participate in the combined authority.
A combined county authority (CCA) is a similar type of local government institution introduced in England outside Greater London by the Levelling-up and Regeneration Act 2023, but may only be formed by upper-tier authorities: county councils and unitary authorities. The members of the CCA are appointed by its constituent councils. In addition, the CCA may appoint additional members and allow another body to nominate members; these members are non-voting unless decided otherwise.
CAs and CCAs are predominantly created in areas where they are considered likely to improve transport, economic development, and regeneration, but their creation is encouraged by Government and there has been a substantial increase in creation in recent years. There are currently 15 such authorities, created between 2011 and 2025. A CA or CCA may not cross over to another combined area.

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