On March 20, 2024, EPA announced new emissions standards for light-duty and medium-duty vehicles, starting with model year (“MY”) 2027 and phasing in through MY 2032. The new standards require ...

Emissions-control technology for mobile sources has developed in a series of interactive steps with the promulgation of emissions standards for new vehicles and engines and for fuel regulation. For ...

A check engine light that returns after being reset means the underlying fault has not been repaired, only cleared from ...