AP photo by Butch Dill / Ryan Blaney (12) leads a pack of cars through the tri-oval during a NASCAR Cup Series race on Oct 14, 2019, at Talladega Superspeedway in Alabama.

The heat is on at Talladega Superspeedway, and not just for the drivers at the Alabama track known for high-speed chaos.

It is another test run for security and health and safety protocols as fans start to return to sporting events in limited numbers. NASCAR is permitting up to 5,000 fans and, officials hope, zero Confederate flags into Sunday's Cup Series race, along with 44 motorhomes.

Fans will undergo health screenings before entering the track and be required to wear masks and asked to maintain six feet of social distancing. Other sports organizations and leagues will likely be watching how NASCAR and Talladega handle the event because fans have been virtually barred from every sporting event in North America for more than three months because of the coronavirus, and positive tests are on the rise in scattered places across the country.

NASCAR also hopes to allow as many as 30,000 fans into Tennessee's Bristol Motor Speedway for next month's all-star race, which would be a dramatic increase from the first fans — about 1,000 of them, mostly military members and their families — allowed into last Sunday's race at Homestead-Miami Speedway in Florida.

"They want to be out front," said James DeMeo, who runs Unified Sports & Entertainment Security Consulting and is an adjunct instructor at Tulane and Mercer. "Nobody wants to be that organization that's known for not properly safeguarding patrons at these types of events."

Talladega and its normally crowded, sometimes raucous scene will have a decidedly different feel. Fans won't be allowed to enter the infield, and there won't be any tailgating allowed outside the grounds before, during or after the race except for customers who bought admission for the RV sites on the Alabama Gang Superstretch. The 5,000 fans inside will be scattered around the front stretch grandstands and towers at a track that can hold about 80,000.

"The race day experience will be different," NASCAR executive vice president Daryl Wolfe said. "It's just different times. Fans will have to adjust to that. We will have to adjust on how we're addressing these issues for fans."

The coronavirus isn't the only new security issue in Talladega. NASCAR has banned display of the Conferederate flag from its events and facilities, but it hasn't outlined how it will enforce the rule.

"It's banned, and hopefully fans will comply, and if not, we'll deal with that," said Steve O'Donnell, NASCAR's executive vice president and chief racing development officer.

Just how NASCAR might deal with flags that pop up will also be closely watched as the nation goes through a reckoning on race relations after the death of George Floyd, an unarmed black man whose heart stopped while he was pinned under the knee of a white police officer in Minneapolis on May 25. Longtime symbols of the Confederacy are being taken down or are under review; Bubba Wallace, NASCAR's only fulltime black driver, helped push the series to ban the flag.

"If they broadcast this race to millions of people, and here are 44 RVs and they're all flying flags on the infield, then what's that make NASCAR look like?" said Richard Morman, who runs Concentric Risk Solutions and is a former deputy chief of Ohio State University's department of public safety.

If that happens, he said, "That's an institutional, reputational issue (where) NASCAR said they're going to ban this and they haven't or they're not enforcing it."

Timothy Ragland, Talladega's first African American mayor, said he hasn't seen plans on how NASCAR plans to enforce the ban.

"But I know being from Talladega and experiencing the races my whole life, there are a lot of people that do fly it," Ragland said. "But I think I will have to echo the sentiment of Dale Earnhardt Sr. and Dale Earnhardt Jr. when I say it belongs in history books. And NASCAR, I think, has taken the correct step to make sure that all of their fans feel included in the NASCAR community."

A panel of representatives from some of North America's major sports leagues — including NASCAR, MLB, MLS, the NBA and the NFL — is holding weekly conference calls to discuss running events and games amid the pandemic, said Jeff Stonebreaker, vice president of safety and security for MLS, which is resuming its season July 8 with a World Cup-style tournament in Florida without fans.

Topics include "everything from how do you handle cleaning and sanitation to how are you sourcing protective equipment and how are you going to approach different things.

"Clearly with that much variety, there's no one size fits all," he said. "But it's a very interesting time to be involved."