Aaron Szabo, the top U.S. Environmental Protection Agency (EPA) official overseeing air pollution regulation, is resigning from the agency, according to reports from multiple outlets. Szabo will step down as head of the EPA’s air office, and he told employees of his plans to resign this month, the New York Times reported. The reports describe him as the chief air pollution regulator within the EPA. They also note that Szabo has been involved in overseeing rollbacks of various air pollution limits during his tenure. Bloomberg and the Financial Post both report the resignation, framing it as an announced departure from the EPA. The coverage does not provide additional details on the reasons for the resignation or who will replace Szabo. Overall, the cited sources agree on the identity of the official and the fact of his planned resignation from the EPA’s air regulation leadership role, along with his role in administering earlier changes to pollution standards.