Choose Rule Violations and Tail-End Sanctions
In NASCAR restart procedures, drivers face an immediate grid penalty if they violate the choose rule commitment point. Any competitor who fails to commit to either the inside or outside lane before reaching the designated mark on the track, or who changes lanes after passing that point, is penalised by being sent to the tail end of the longest line. Because this sanction immediately reorders the field before the green flag, it is applied directly to the restart lineup rather than through a timed pit stop.
Track Exceptions and Procedural Adjustments
NASCAR adapted the choose rule across all three of its national series, while explicitly excluding superspeedways and road courses from the procedure. While lane selection functions identically at the front of the field, NASCAR competition officials noted subtle operational adjustments to manage wave-arounds, free passes, and full-field line dynamics during double-file restart procedures.
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Eliminating Pit Road Tactics and Bristol Origins
Before the choose rule was introduced, only the race leader had the authority to choose their restart lane, which led trailing competitors to brake or slow down deliberately on pit road to secure an advantageous lane for double-file restarts. Allowing every car to choose their lane at the track mark eliminated that gamesmanship. NASCAR first tested the format during the July 2020 All-Star Race at Bristol Motor Speedway—where an orange V marked the commitment point—before implementing it in points-paying competition beginning at Michigan International Speedway in August 2020.
Sources: NASCAR Implementing Choose Rule Starting at Michigan; 'Choose Rule' Featured in All-Star Race Format.