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NASCAR rules bulletin makes changes to package for three tracks

Monster Energy NASCAR Cup Series - Pennzoil Oil 400

LAS VEGAS, NV - MARCH 03: Joey Logano, driver of the #22 Pennzoil Ford, drives during the Monster Energy NASCAR Cup Series Pennzoil Oil 400 at Las Vegas Motor Speedway on March 3, 2019 in Las Vegas, Nevada. (Photo by Robert Laberge/Getty Images)

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NASCAR issued a bulletin Wednesday changing the Cup rules package for Pocono, Darlington and Miami.

Cup teams will now use the aero ducts at those tracks, along with those previously announced.

“When we originally looked at which elements of the package to race at each track, we wanted to err on the side of caution at a few tracks where there may be some brake cooling concerns,” John Probst, NASCAR senior vice president, innovation and racing development.

“After reviewing data from Atlanta, and with what we’ve learned over the first 11 races, we believe we can use the ducts without issue. In conversations with the teams, they emphasized the desire to focus on one race package, which will continue to improve the racing.”