Zonar has integrated Emissions Check, a new solution that enables on-route compliance, with its Zonar V4 telematics control unit (TCU). The new feature reduces downtime, and lowers third-party ...

Earlier this month, the EPA repealed a key finding that greenhouse gases harm human health and can be regulated under the Clean Air Act.

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The postcard from the Illinois Air Team said the aging SUV was due for an emissions test. Unlike one’s SAT tests, it passed with flying colors. Following a 44-second wait in line at the three-bay ...