California could soon close one of the dirtiest diesel-emissions loopholes
Posted By Green Car Reports
Date Friday, 26 July 2019, at 10:00 a.m.
We’ve all seen it while following big rigs: Clouds of sooty smoke coming from a single truck, prompted by an uphill grade, a passing maneuver, or sometimes seemingly nothing at all. How can that be legal? It might not be legal, but it underscores a current loophole in U.S. emissions for larger (Class 4-8) trucks: There’s no mechanism...Read more
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