The phrase "authority comprises" is correct and usable in written English.
It can be used when discussing the elements or components that make up a particular authority or governing body.
Example: "The committee's authority comprises several key members from different departments."
Alternatives: "authority includes" or "authority consists of".
After six months, the local authority, comprised of resistance fighters to the Soviet regime, asked me to help set up a school.
The new Greater London Authority, comprising a directly elected mayor and a 25-member assembly, assumed some of the responsibilities in London previously handled by the central government notably transport, planning, police, and other emergency services.
Established in 2000, the new Greater London Authority comprised a directly elected mayor and a 25-member assembly, and it assumed some of the local responsibilities that the central government had handled since 1986—notably over transport, planning, police, and emergency services.
The control inspections (n = 352) were routinely performed by the state authorities comprising a survey as well as food and environmental sampling.
The domestic authorities comprised both a Consiglio Maggiore and a Consiglio Minore composed of members of the local aristocracy.
Seven local authorities comprise the study region, namely: East Renfrewshire, Glasgow City, North Lanarkshire, Renfrewshire, South Lanarkshire, and West Dunbartonshire.
Sweden is structured in local authorities, comprising 20 regions and 290 municipalities responsible for providing health care and welfare for the residents [ 14].
The unitary authority, which comprises the former districts of Congleton, Crewe and Nantwich, and Macclesfield, was created in 2009 when the former administrative county of Cheshire was restructured.
The unitary authority, which comprises the former districts of Chester, Ellesmere Port and Neston, and Vale Royal, was created in 2009 when the former administrative county of Cheshire was restructured.
