Race Flags

Green Flag
The green flag is a solid green flag that signals the start of the race or a resart after a caution or stopage. It is waved by the flagman or signaled by green lights around the track. Usually, the green flag is only waved till all cars have pasted the flagman's stand. When no flag is waved or displayed from the stand, green flag conditions are implied.

A green and yellow flagged displayed at the same time indicate that the race is continuing (laps and positions count) but under caution. This is also knowing as a running yellow.

Yellow Flag
The yellow flag is a solid yellow flag that singals a caution due to harard or other track conditions, thus is also known as the caution flag. It is waved by the flagman as soon as the caution is noticed. Track signal lights will also show yellow at this time. During a yellow flag cars cannot overtake, laps are not counted, and positions are locked at where there were when the caution was called. Speed is limited for safety and racing resumes when the green flag waves.

Red Flag
The red flag is a solid red flag that signals a pause in racing due to hazards and/or track conditions. During a red flag, cars exit the track or stop in assigned areas, or where they are on the track.

White Flag
The white flag is a solid white flag that signals the start of the last lap of the race.

Black Flag
The black flag is a solid black flag that is used on individual drivers. It signals that the driver has been called off the track by race officals for some reason. Commonly, for damage that is likely to cause a yellow or red flag, mechanical failure, as a penalty, for a rules violation, and/or disqualification. Rarely (in American racing) a half black-half white flag is used to for rules violations or penalties.

Blue Flag
The blue flag can be a solid blue flag or a blue flag with a diagonial yellow stripe that indicates a driver is about to be lapped and should yield the right of way to faster cars.

Checkered Flag
The checkered flag is balck and white checkerd flag that signals the end of the race. It is traditionally displayed at the finish line.