Public Investigator asked the Department of Transportation why tests are still required, and what options exist for people ...

A new real-time monitoring system captures minute-by-minute changes in toxic metals resulting from traffic pollution.

Introduction: A Growing Focus on Agricultural Emissions. While Small Engines Market is typically analyzed through the lens of ...

When President Donald Trump signed legislation to revoke California’s authority to enforce stricter tailpipe emissions ...

WASHINGTON, DC (REUTERS) – The US House of Representatives on September 20 voted narrowly to repeal clean vehicle rules adopted in March to cut fleetwide tailpipe emissions by 50% over 2026 ...

Imagine quickly diagnosing why your car's check engine light is on. A scan tool, also known as a trouble code reader, can help you identify the problem yourself.

Frederic Manby drives the new-look Skoda Octavia vRS hatch – in a rather eye-catching and traffic-stopping Hyper Green – and ...

European truck brand MAN, a bus-making subsidiary of the Volkswagen Group, is developing an electric bus that will have an estimated driving range of up to 403 miles on a full charge. The MAN ...

So Massachusetts just cut the BS. It discontinued any tailpipe test. Now, if a mechanic is completing the mandatory safety and emissions tests and gets a vehicle over 15 years old, they can just do a ...

The Honda Pilot is a durable SUV, but it’s not immune to mechanical errors. Find out what the emissions system warning light means and what to do about it.

A Republic reader is concerned about the effects of air pollution on children, and wants to know how to push for change.