Dale Earnhardt Jr.'s benching last year was a lesson for auto racing.

FOX's Chris Hoenig reports:

NASCAR revamping its concussion protocol for the new season, with the Daytona 500 just over a week away.

Any driver that is involved in a wreck that sends their car to the garage will now have to undergo an evaluation for a head injury. It used to be that drivers were required to go to the infield care center only if their car needed to be towed off the track.

For the first time, NASCAR is using its own staff of physicians at every race, instead of local doctors. A move that drivers had pushed for.

Dale Earnhardt Jr. missed the second-half of last year's schedule due to a concussion.

Chris Hoenig, FOX News.

Follow Chris Hoenig on Twitter: @Chris_Hoenig