Measures taken by authorities to restrict or direct traffic flow to ensure safety and order; often used for temporary events or emergencies.

A government's restrictions on the purchase and sale of foreign currencies to maintain balance of payments or stabilize the domestic currency value.

The takeover of specific departments, regions, or state power by military authorities due to war or other special circumstances.

a person who manages or regulates a specific system or process, often used in the context of air traffic control

an air-raid precaution where lights are extinguished or hidden to prevent enemy aircraft from identifying targets

Policies and procedures used to ensure that industrial products meet specific standards; also pronounced pǐn zhí guǎn zhì in Taiwan

a person responsible for directing the movement of aircraft in a specific area

The management and control of aircraft movement in the sky to ensure safety and smooth traffic flow

Items that are restricted by law and cannot be traded, imported, exported, or used without official permission, such as weapons or narcotics

control tower at an airport for managing air traffic

a temporary administrative body established by the military to exercise control over a region during an emergency or transition period

To strengthen oversight or tighten control over something.

Restricted administrative regions in the mountains of Taiwan, primarily indigenous reservations, where visitors must apply for a permit from the police before entering.

a system of management or oversight by a trustee, specifically the international trusteeship system of the United Nations

deregulation; the removal or reduction of government rules and restrictions

The system or process of managing and directing aircraft in flight and on the ground to ensure safety