SMOG checks or emission tests exist due to the U.S. Environmental Protection Agency's (EPA) regulation on passenger vehicles. Each state sets limits of nitrogen oxides (NOx) from emitting past ...
According to Oregon and California’s fire departments, trucks were stopped in Davis, California, just outside Sacramento, for maintenance and safety checks, and those trucks continued onward. Photos ...
Rising smog in Bangkok linked to car emissions, with authorities aiming to reduce private car use to curb pollution ...
Rumors spread on social media last week that Oregon fire trucks headed for the historic fires were stopped and inspected for emissions levels by California state workers and either delayed or sent ...