Charlotte and Atlanta opened the races to frontstretch condominium owners, who could each offer five guests. To reduce on-track activity, all events are being held without qualifying or practice sessions (excluding the Coca-Cola 600, which used same-day qualifying, and the Pennzoil 150 Xfinity race, which had Friday practice as the Indianapolis Motor Speedway moved the event to the road course as part of an INDYCAR doubleheader), and starting order was initially determined by either a random draw, divided into segments of the owners' points standings as of that race, for single race meetings, and for the second race in the same meeting, the finishing order from the previous race with the top 20 inverted. Similar to rules used when rain cleaned the rubber off the circuit between the last session and the race, refueling of cars was prohibited until a predetermined safety car situation ("competition caution") at a specific lap (between lap 10 on road courses to lap 50 on short tracks) announced during the conference call that drivers, crew chiefs, and officials participated during the week that replaced the competitors' meeting held on race morning.