NASCAR clarifies how it will rule on drivers stopping in another team’s stall for service after Christopher Bell's penalty at Las Vegas.

NASCAR sent a clarification on Thursday to Cup, Xfinity, and Craftsman Truck Series teams about pitting in another team’s stall. The update comes after Christopher Bell pulled into Chase Briscoe’s pit stall for a loose wheel adjustment during last week’s race at Las Vegas Motor Speedway.

The Pennzoil 400 in Las Vegas saw Christopher Bell avoid a penalty by pulling over to pit in his teammate's pit stall - leaving NASCAR to intervene.