Ports usually have a governing body referred to as the port authority, port management, or port administration. Port authority is used widely to indicate any of these three terms.
The definition of port authority has been defined in various ways. In 1977, a commission of the European Union (EU) defined a port authority as a State, Municipal, public, or private body, which is largely responsible for the tasks of construction, administration and sometimes the operation of port facilities and, in certain circumstances, for security. This definition is sufficiently broad to accommodate the various port management models existing within the EU and elsewhere. (http://www.ppiaf.org/sites/ppiaf.org/files/documents/toolkits/Portoolkit/Toolkit/module3/port_functions.html#2)
Ports authorities may be established at all levels of government: national, regional, provincial, or local. The most common form is a local port authority, an authority administering only one port area. However, national port authorities still exist in various countries such as Tanzania, Sri Lanka, Nigeria, and Aruba. The United Nations Conference on Trade and Development (UNCTAD) Handbook for Port Planners in Developing Countries lists the statutory powers of a national port authority as follows (on the assumption that operational decisions will be taken locally): (http://www.uctc.net/research/diss131.pdf) * Investment: Power to approve proposals for port investments in amounts above a certain figure. The criterion for approval would be that the proposal was broadly in accordance with a national plan, which the authority would maintain. * Financial policy: Power to set common financial objectives for ports (for example, required return on investment defined on a common basis), with a common policy on what infrastructure will be funded centrally versus locally, and advising the government on loan applications. * Tariff policy: Power to regulate rates and charges