 Cup Series teams are allowed one extra road crew position at Indianapolis Motor Speedway and the three road courses (Sonoma, Watkins Glen, Charlotte), where teams often use multiple spotters.Also, an additional road crew roster spot will be allowed for Xfinity teams at 10 races and Truck Series teams at five.Starting in 2017, NASCAR announced they may reserve the right to move up the start of the race one hour to beat inclement weather (heavy rain and lightning on road courses).