GRAP-IV: Researchers at DTU had earlier rolled out an AQI-type PUC certificate system that considered the mileage of vehicles ...

With no rains in winter, air quality in the Valley is worsening in the Valley, and reaches very unhealthy levels in the ...

Here’s a breakdown on where the vehicle inspection issue stands, what it means for New Hampshire drivers, and what could happen next.

The Delhi government will enforce its 'No PUC, No fuel' policy even after the GRAP-IV restrictions are lifted. The ...

Illinois AirCheck mobile testing units will visit the Bensenville Water Park, 1100 W. Wood St., from 10 a.m. to 4 p.m.

It’s the latest in a decade-long scandal involving accusations that software “defeat devices” made diesel vehicles seem ...

A substantial share of vehicles currently in use, especially motorcycles in use for years without routine checks or upkeep, ...

In a news release on Monday, Attorney General Dave Sunday said Pennsylvania will receive $6.6 million over the allegations ...

Across the United States, the rules for checking tailpipe pollution are quietly shifting, even as climate targets grow more ...

Mercedes has agreed a $149m settlement, drawing a line under a protracted investigation into alleged manipulation of diesel ...

Karnataka’s vehicle emission monitoring system has all but collapsed, with over 400 emission testing centres across the state ...

Under the agreement, Mercedes will pay $120 million upfront, with an additional $29.7 million potentially waived if the ...