Post-race, officials declared Hamlin's No. 11 Joe Gibbs Racing Toyota fully legal following inspection, making his win official. That was the case for all Cup Series cars; however, during the race, things were much busier for the officials, with several infractions occurring.
Perhaps the most unforgiving of these was 'speeding on pit road', with four Cup Series drivers found guilty of this rule break on Sunday afternoon: Michael McDowell, Ryan Preece, Bubba Wallace, and Daniel Suarez. All four were hit with pass-through penalties as a result.
Elsewhere, 'pitting before pit road is open' was another heavily violated rule, with 10 tail-end penalties issued during Sunday's for this specific infraction.
Meanwhile, other violations of the rules that occurred at Las Vegas Motor Speedway included a 'commitment line violation', a 'tire violation', and 'equipment interference'.