Busch has been fined US $50,000 and placed on probation until the end of the year following his incident with Truck Series contender Ron Hornaday in the early laps of Friday's race at Texas Motor Speedway.
According to NASCAR's release Busch could be suspended indefinitely "if during the remaining NASCAR events in 2011 there is another action by the competitor that is deemed by NASCAR officials as detrimental to stock car racing or to NASCAR, or is disruptive to the orderly conduct of an event".
The Joe Gibbs Racing driver has lost any chance of contending for this year's Sprint Cup title after being unable to score any points in Sunday's race, which he watched from the top of his team's pitbox on his sponsor's request.
It remains to be seen if JGR will take any internal measures against Busch after his Sprint Cup sponsor Mars and manufacturer Toyota have expressed their disappointment over the driver's actions.
