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More NASCAR rules changes for 2017

NASCAR competition officials issued memos detailing rule book changes for the 2017 season in its three national series, including limits on tire allocation. The 80 total pages of revisions released Friday afternoon pertain to Sections 20 (Vehicle and Driver Safety specifications) and 21 (Pit Equipment and Crew Safety specifications) across the Monster Energy NASCAR Cup Series, NASCAR XFINITY Series and the NASCAR Camping World Truck Series. Among the highlights in the tire rules updates:

  1. NASCAR set its regulations on tire allocation for all three series in 2017. In the Monster Energy Cup Series, the number of tire sets available to teams per event dropped for 13 of the 36 points-paying races and increased for eight events compared to last year. With the exception of the season finale at Homestead-Miami Speedway, the number of tire sets was only adjusted by one. Teams will have two fewer sets in the season-ending event this season, a reduction from 2016's 12 sets to just 10 in 2017.
  2. Tracks with one fewer set of tires allowed next season: Daytona (500 only), Phoenix (both races), Auto Club, Martinsville (both races), Bristol (both races), Kansas (both races), Kentucky and Chicagoland. Tracks with an additional set of tires allowed next season: Talladega (both races), Sonoma, Daytona (July only), New Hampshire (both races), Watkins Glen and Darlington.
  3. In 2017, Monster Energy Cup teams will be required to start the race on the tires they used in Coors Light Pole Qualifying. This change does not apply to the XFINITY or Camping World Truck Series. NASCAR PR