Teams of Kyle Larson and Ryan Blaney both received written warnings after infractions at Watkins Glen International.
Larson's No. 42 Chip Ganassi Racing team received a warning after failing pre-qualifying template inspection twice, while Blaney's No. 21 Wood Brothers Racing team received warnings for failing pre-qualifying and pre-race laser inspection twice.
After receiving their fourth warning, the Wood Brothers will be forced to forfeit their pit stall pick for the next event at Bristol Motor Speedway on Aug. 20th.
NASCAR has also suspended crew member Michael Casto indefinitely for violating the sanctioning body's Substance Abuse Policy.