ARVADA, Colo. (CBS4) - Ten of Air Care Colorado's locations have reopened for emissions testing with extensive safety procedures in place. Cars were lined up at the Arvada location as soon as it ...

Stricter global emissions standards have led many automakers to downsize engines, but that trend may be about to reverse itself. Cutting displacement is a relatively straightforward way to improve ...

Increasingly stringent Federal exhaust emissions standards being applied to new automobiles necessitates an accurate short test to indicate vehicle emission failures for Inspection Maintenance (I/M) ...

The efforts made by Congress and Government Agencies in the past decade to limit the exhaust emissions and fuel consumption of motor vehicles led to a variety of complex measuring and testing ...