UPS acknowledged the vote outcome and noted that Friday's strike authorization doesn't automatically trigger a work stoppage. While many union members at UPS cast their votes on the strike authorization before the heat safety deal was announced, some drivers said afterward that other big priorities remain. Heat safety experts praised the preliminary agreement on air conditioning but cautioned that addressing the threat of extreme temperatures would take time. Seth Harris, a law and policy professor at Northeastern University who served as President Joe Biden's top labor policy adviser, said progress on heat safety at UPS could have broader ripple effects. Already, though, the concessions have jolted UPS workers and their allies with a dose of optimism.

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Persons: Sean O'Brien, Zakk Luttrell, We've, it's, Luttrell, Amit Mehrotra, Mehrotra, Juley Fulcher, Fulcher, —, Seth Harris, Joe Biden's, Theresa Klenk, Klenk, — Annie Probert Organizations: Teamsters, UPS, NBC, Occupational Safety, Health Administration, Deutsche Bank, Logistics, FedEx, U.S . Postal, Public Citizen, Northeastern University, New, New Jersey UPS Locations: New Jersey