What is a characteristic feature of a two-tier authority?

A two-tier authority system is characterized by the division of responsibilities between two different levels of local government, typically consisting of a higher-tier council (often a county council) and lower-tier councils (often district councils). This structure allows for a clear delineation of roles and functions, where the county council typically handles wide-ranging issues such as education, transport, and strategic planning, while district councils focus on more localized matters like housing, local planning, and certain social services.

This division enables each council to specialize and effectively manage their specific areas of responsibility, which is fundamental to the two-tier system. Therefore, highlighting the division of responsibilities accurately captures the essence of a two-tier authority. Other aspects like integration of services, enhanced powers for mayors, or increased funding, while relevant to some aspects of local government, do not define this specific structure in the same way.