Restriction to flight imposed in order to:

1. Protect persons and property in the air or on the surface from an existing or imminent flight associated hazard;

2. Provide a safe environment for the operation of disaster relief aircraft;

3. Prevent an unsafe congestion of sightseeing aircraft above an incident;

4. Protect the President, Vice President, or other public figures; and,

5. Provide a safe environment for space agency operations.

Pilots are expected to cheque appropriate NOTAMs during flight planning when conducting flight in an area where a temporary flight restriction is in effect.