| AVIATION LIGHT GUN SIGNALS |
| Color and Type of Signal |
Movement of Vehicles, Equipment and Personnel |
Aircraft on the Ground |
Aircraft in Flight |
| Steady green |
Cleared to cross, proceed or go |
Cleared for takeoff |
Cleared to land |
| Flashing green |
Not applicable |
Cleared for taxi |
Return for landing, followed by steady green at the appropriate time |
| Steady red |
STOP |
STOP |
Give way to other aircraft and continue circling |
| Flashing red |
Clear the taxiway/runway |
Taxi clear of the runway in use |
Airport unsafe, do not land |
| Flashing white |
Return to starting point on airport |
Return to starting point on airport |
Not applicable |
| Alternating red and green |
Exercise Extreme Caution |
Exercise Extreme Caution |
Exercise Extreme Caution |
