Definitions for "Public Authority"
The HRA 1998 states that courts are 'public authorities' for the purposes of the Convention. As such, the courts are under a duty to ensure that the Rights of others are respected. The Act also provides that it is unlawful for the courts to act in a way that is not compatible with the Convention.
A Federal, State, county, town, or township, Indian tribe, municipal or other local government or instrumentality with authority to finance, build, operate, or maintain toll or toll free transportation facilities.
The Act is intended to have wide application across the public sector at national, regional, and local level.  In view of the large number of bodies and offices intended to fall within the scope of the Act it is not feasible to list each body individually.  Public authorities are, therefore, designated in one of the following ways: on the face of the Act (in Schedule 1), using generic descriptions where appropriate, which specifies the principal authorities in national and local government, together with the principal public authorities relating to the armed forces, national health service, education, the police and other public bodies and offices;      by order under section 4(1) adding to Schedule 1 any body or the holder of any office that satisfies certain specified conditions;      by order under section 5 adding any person that satisfies certain conditions and that appears to the Secretary of State to exercise functions of a public nature or is providing under a contract with a public authority any service whose provision is a function of that authority; or      by reference to the definition of a publicly-owned company in section 6.
a corporate body chartered by the state legislature with powers to own, finance, construct, and operate revenueproducing public facilities
a type of public benefit corporation that takes on a more bureaucratic role, such as the maintenance of public infrastructure , that often has broad powers to regulate or maintain public property