NASCAR has made some changes to the rule book

He made these changes after the penalty of William Byron

did it because it can't happen again

NASCAR docked William Byrne by 25 points

and fined them about $50000 2 weeks ago

NASCAR was lacking in caution, due to which he received a harsh punishment

Then later his penalty was amended and the fine was doubled.

Hendrick Motor Sports felt the punishment

that they had the best chance of appealing

NASCAR changes rules after William Byrne's decision