Wherever the California Air Resources Board (CARB) dares to tread, the rest of the United States is sure to follow – at least part of the way. CARB regulations are often far stricter than those of the ...

GM has issued an emission recall for certain units of the 2025 Chevy Silverado 1500 and 2025 Chevy Silverado HD pickup trucks that were potentially produced with incorrect Vehicle Emissions Control ...

The U.S. Department of Justice has ordered a recall of 600,000 Ram trucks as part of a settlement that directs engine maker Cummins Inc. to remedy environmental damage it caused when it illegally ...

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 ...

A purge valve is a vital component of a vehicle's evaporative emission control (EVAP) system. Its function is to control the flow of fuel vapors from the fuel tank and evaporative canister into the ...

State regulators on Thursday approved new rules seeking to reduce methane emissions from landfills, which will help in the ...

Some 2025 GMC Sierra 1500 and 2025 GMC Sierra HD trucks are included in an emission recall voluntarily issued by General Motors, which refers to a problem in which the Vehicle Emissions Control ...

Robin Smit is the founding Research Director at the Transport Energy/Emission Research (TER) consultancy. Alberto Ayala does not work for, consult, own shares in or receive funding from any company or ...

What Is A Basic Drive Cycle? A basic drive cycle is a simplified version of a standard drive cycle used to evaluate the performance of a vehicle's onboard diagnostic (OBD) system. Unlike a standard ...

The Mediterranean Sea officially became an Emission Control Area for Sulphur Oxides and Particulate Matter (Med SOx ECA) under MARPOL Annex VI on May 1, 2025. The sulphur content in fuel oil for ships ...