EPA OKs California’s tighter diesel NOx rule; can waiver survive under Trump?
California has received a waiver that allows tighter rules on diesel emissions; will it have a short shelf life? The post EPA ...
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Biden administration grants California waiver to ban gas car sales in 2035
the Advanced Clean Cars II regulations for light-duty vehicles and a low-nitrogen oxide regulation for heavy-duty highway and off-road vehicles and engines. California is able to set such ...