Two of the eleven teams will lose 15 minutes of practice time at Darlington.
11 NASCAR Sprint Cup teams have been issued warnings for various reasons this week. Two of those will actual face a penalty at Darlington - Joe Gibbs Racing's Kyle Busch and Matt Kenseth will lose 15 minutes of practice time.
The No. 18 team failed pre-race inspection four times while the No. 20 failed twice and was also late.
As for the other nine...
Failing pre-qualifying inspection twice: Jeff Gordon (#24), Joey Logano (#22), Travis Kvapil (#30), Alex Bowman (#7) and Timmy Hill (#98) all failed pre-qualifying inspection twice.
Late to pre-qualifying inspection: Clint Bowyer (#15), Denny Hamlin (#11) Landon Cassill (#40), Matt DiBenedetto (#83)
NASCAR revised their warning system earlier this month (Read Here).