A former employee of this government agency, Brent Efron, compared this agency’s work to “throwing gold bars off the edge” on a Tinder (10[1])date in a clip since used to justify investigations of it. A 1980s ruling supporting this government agency, then led by Anne Gorsuch, created deference to federal experts in interpreting (10[1])unclear laws, but was overturned in 2024. This government agency plans to rescind a 2009 “endangerment finding” as part of what (10[1])Lee Zeldin has called the US’s (10[1])“greatest day of deregulation,” including changing NAAQS regulations on PM 2.5. (10[1])For 10 points, what Nixon-era (10[1])government agency (10[1])is responsible for (10[1])enforcing laws like the Clean Air Act? ■END■ (10[1])