EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy
Green Car Congress
SEPTEMBER 19, 2019
This action is based on the premise that federal law preempts state and local tailpipe greenhouse gas (GHG) emissions standards as well as zero emission vehicle (ZEV) mandates. The California waiver authority exists because California has uniquely difficult problems with ozone-forming pollutants. Earlier post.)
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