Attention Shifts To Remaining California Waiver Requests After Approvals

December 20, 2024
Observers are awaiting EPA’s responses to California’s remaining requests for preemption waivers covering the state’s mobile source standards, amid expectations the agency is particularly likely to approve a quartet of measures limiting emissions from harbor craft, offroad diesel vehicles, transport refrigeration units and small offroad engines. The shift of attention -- shortly after EPA blessed California’s Advanced Clean Car II (ACC II) and “omnibus” heavy truck rules -- comes amid a diminishing window for the agency to formally respond to...


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