Emergency crews check on Kurt Busch after he hit the wall during the Clash at Daytona. (AP Photo/John Raoux)

DAYTONA BEACH, Fla. (AP) -- Kyle Larson was parked with 14 laps remaining in the Clash at Daytona for violating one of NASCAR's new rules.

Officials said Larson's team had more than six crewmembers over the wall to work on his No. 42 Chevrolet. NASCAR's new damaged-vehicle policy states that teams can't continue in the race if they're caught with too many men over the wall.

"I didn't even know that was a rule," Larson said. "I guess it doesn't really matter because it's just an exhibition race anyways. ... It's just confusing. We know now."

Teams will have a learning curve with the new rules, which were designed to avoid safety hazards on tracks.

Under the new rules:

— If a car receives enough damage during an on-track accident that it must go to the garage for repairs, the team will not be allowed to return to the track.

— Damaged vehicles can be repaired on pit road during a five-minute time limit.

— Body repairs are limited to the removal or reattachment of original parts with fasteners and tape.

— Rods and supports may be used to reinforce original panels.

— New or previously unused body panels are prohibited.

Jimmie Johnson climbs out of his car after hitting the inside wall during the Clash at Daytona. (AP Photo/Phelan M. Ebenhack)

NASCAR also is requiring drivers who are involved in a wreck that sends their car to the garage to report to the infield care center for an evaluation. Under the old rule, a driver went to the care center only if their car had to be towed from the track. Concussion assessment tests will be administered if care center doctors believe there is a concern of head injury.

The new policy got its first test Sunday in the Clash.

"There was an individual that met me out by the car, rode with me in the ambulance and again met with the doctors and just went through different sequences to check all of the different vitals and we were released," driver Kurt Busch said. "It’s just a little bit of an upgrade. You can tell that they’ve made an effort and it’s nice to have that security."


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