A drive cycle is a standardized test procedure to measure a vehicle's emissions and fuel economy. The test is designed to mimic typical driving patterns, such as city and highway driving, and to ...

Montpelier, VT. – The Automotive Emissions Repair Assistance Pilot Program, a project launched by Vermont’s Department of Environmental Conservation, has set up partner repair facilities in Shelburne ...

A new policy has halted all criminal investigations and prosecutions of those who bypass vehicles' emissions control systems, ...

The Trump administration has continued to scale back vehicle emissions-related regulations that were expanded under the ...

The Trump administration has announced it will no longer criminally prosecute “diesel delete” cases of truck owners altering ...

Last month we began our discussion of emission systems by examining various crankcase and fuel vapor control devices, along with throttle and carburetion equipment aimed at reducing automotive exhaust ...

Long the focus of regulators in their efforts to clean up the air, the automobile has become so clean there are now cases where the air coming out of the tailpipe is cleaner than the surrounding air.

Cummins Inc. has agreed to pay a $2.04 billion charge to resolve discrepancies in emissions certifications in some of Cummins’ pick-up truck engines. Cummins officials told investor analysts during ...