Definition
A short-term restriction issued by the FAA, typically through a Notice to Air Missions (NOTAM), that prohibits or limits aircraft operations within a defined block of airspace for a stated period. Temporary Flight Restrictions are used to protect persons or property on the surface or in the air from a hazard, to provide a safe environment for disaster relief or law enforcement operations, to protect the President, Vice President, and other public figures, and to prevent unsafe congestion of aircraft over events such as wildfires, sporting events, or air shows.
Plain English
A rule that closes off or limits a piece of airspace for a short time, usually because something below or nearby needs protection -- a wildfire, a major event, a VIP movement, or a disaster scene.
Context Anchor
Pilots encounter Temporary Flight Restrictions during preflight planning, flight briefings, and route checks, especially near major events, wildfire areas, disaster zones, VIP movements, and space operations.
Derivation
Temporary comes from a Latin word meaning “lasting for a time.” Restriction comes from roots meaning “to hold back or limit.” Together, the phrase points to a limit on flying that applies only for a set time and place, not a permanent airspace change.
Why Pilots Care
Entering a TFR without authorization can lead to FAA enforcement action or military interception.
Intuition Check
Do not assume “temporary” means casual or unimportant. A Temporary Flight Restriction may last only a short time, but while it is active it is legally enforceable. Do not assume “restriction” always means a total ban. Some Temporary Flight Restrictions allow certain aircraft to enter if they meet the stated requirements.
Example Sentence 1
Before departing, the pilot checked NOTAMs and found a Temporary Flight Restriction over the stadium for the afternoon football game.
Example Sentence 2
Wildfire operations triggered a Temporary Flight Restriction that kept all non-participating aircraft clear of the area.