Fire suppression, wave around, free pass and double-yellow line rules updated
NASCAR has added a set of new rules to the lengthy rule book. Of those, a second fire suppression system is now required. If the leader is involved in an accident, more cars may get the wave around. The double-yellow line for superspeedways will now be in place for both practice and qualifying.
View the new NASCAR rules below.
OBFSS
A “Effective June 21, 2023, the second OBFSS system must service the fuel cell area (trunk) and engine compartment.”
Leader involved in accident
H: “Prior to the Choose, if the official Race leader fails to maintain speed because of either an accident and/or mechanical failure, after the caution lights are illuminated and/or yellow flag is displayed, and a new Race leader is declared prior to pit road opening, any vehicles in front of the new Race leader may catch the tail of the field, when directed by NASCAR, as if they were ahead of the new Race leader at the time of the caution.”