The No. 99 car driven by Carl Edwards was found to be in violation of Sections 12-4-A (actions detrimental to stock car racing); 12-4-Q (car, car parts, components and/or equipment used do not conform to NASCAR rules); and 20-2.1J (any device or duct work that permits air to pass from one area of the interior of the car to another, or to the outside of the car, will not be permitted. This includes, but is not limited to, the inside of the car to the trunk area, or the floors, firewalls, crush panels and wheel wells passing air into or out of the car) of the 2008 NASCAR rule book. The violations were found during post-race inspection at Las Vegas Motor Speedway on March 2.
As a result, Edwards and car owner Jack Roush have been penalized 100 championship driver and 100 championship owner points, respectively. In the event the 99 team qualifies for the Chase for the NASCAR Sprint Cup, the team will not receive the 10 bonus points for the UAW-Dodge 400 victory used for determining the Chase seeding order. Crew chief Bob Osborne has been fined $100,000, suspended from the next six NASCAR Sprint Cup Series events, suspended from NASCAR until April 30 and placed on probation until Dec. 31.