CHARLOTTE, N.C. — Four-time Indianapolis 500 winner Helio Castroneves claimed a spot in the season-opening Daytona 500 as part of a slew of rule changes NASCAR announced Friday.

Castroneves is guaranteed a spot in the field under a new provision that earmarks a starting position for what NASCAR called “world-class drivers” who enter a Cup Series race. Before the Friday change, Castroneves was going to either have to earn his spot in the 40-car field on speed in time trials or finishing position in a qualifying race.

If he failed to do either, the Brazilian would be in the field as a 41st car and four open spots would still remain for drivers hoping to race in the Feb. 16 “Great American Race.” Castroneves will be driving for Trackhouse Racing in his NASCAR debut at age 49.

Under the new rule, if the provisional is used, the driver/car owner will not be eligible for race points, playoff points or prize money. Cars that finish below the driver who uses the provisional will have their finishing position adjusted upward one spot and also have their prize money, race points and stage points adjusted.

If the provisional car wins a race and/or stage, that car will be credited with the race win. It will not count toward playoff eligibility. The second-place finisher will inherit first-place points, but will not receive playoff points or playoff eligibility.

Among other changes issued Friday:

Playoff waivers: NASCAR said if a driver misses a race for anything besides a medical emergency, the driver will forfeit all current and future playoff points and will start the playoffs with a maximum of 2,000 points.

Covered under medical emergency would be emergencies for the driver, the birth of a child or a family emergency, as well as age restrictions.

It means that Kyle Larson, who is scheduled to again race in both the Indianapolis 500 and the Coca-Cola 600 for a second consecutive year, must return from Indiana to North Carolina and compete in the Cup race. It was a point of contention last year when rain delayed the 500 in Indy, Larson was late to arrive in North Carolina for the 600, and by the time he got to the track, rain had stopped that race.

Larson never got to compete in the Coca-Cola 600, and NASCAR hemmed and hawed for a lengthy amount of time before finally granting him a waiver.

Waivers previously came with no penalties such as the loss of playoff points.

Penalties to manufacturers: After the penultimate race at Martinsville Speedway was marred last year by allegations of manufacturers banding together to push their drivers into the championship race, NASCAR vowed to look at how it can stop such manipulation in the future.

NASCAR said that, moving forward, violations by manufacturers may result in the loss of manufacturers points, and/or loss of wind tunnel hours. NASCAR will assess such penalties for violation of the vehicle testing policy, wind tunnel policy, event roster and code of conduct.

Performance obligation: NASCAR did not give many details on this change other than “verbiage around the 100% rule is replaced with a focus on ‘manipulating’ the outcome of an event/championship.”

Practice and qualifying: New practice and qualifying procedures were formally added to the rulebook. Group practice goes from 20 to 25 minutes; single-round qualifying at all tracks but superspeedways, which will have a final round for 10 cars; and starting position is determined solely by qualifying results instead of row-by-row designation based on which qualifying group the car was in.

Suspension deferral: NASCAR said all suspensions that are a result of a technical penalty can be deferred without appeal for the next race following a penalty. All other suspensions are effective immediately.

Damaged vehicle policy: NASCAR has altered this policy for the Cup Series after many complaints about how the rule was applied last year.

Vehicles on the DVP clock may drive to the garage or be towed to the garage and will not be ruled out of the race. Previously, if a car on the DVP clock was towed to the garage or drove to the garage, it was out of the race.

Information from The Associated Press was used in this report.