Troy Lake served seven months in prison for disabling emission control devices in at least 344 heavy-duty commercial trucks.

When agents eventually “caught on,” Paul reported, they raided Lake’s shop in 2018. Years later, under the Biden ...

Chairman of the Senate Committee on Energy and Natural Resources, recently introduced legislation that would eliminate citizen suits under the federal Clean Air Act (CAA). The Fair Air Enforcement Act ...

A long-distance runner was convicted of using an off-limits area of the national park, while a Colorado mechanic had pleaded ...

Section 112 enables the president to exempt any stationary source of air pollution from any CAA regulation for two years if he or she “determines that the technology to implement such standard is not ...

In 2002, California passed the nation's first law regulating greenhouse gas emissions from vehicles. The Supreme Court's 2007 ...

The Cold Weather Diesel Reliability Act would require the EPA to authorize manufacturers to suspend engine derates and ...

Senate Energy and Natural Resources Chair Mike Lee has introduced legislation to strip the public of its long-standing ...

Leading enforcement action against an engine manufacturer earned Nick McDaniel a Flemming Award. He credits his tech-savvy ...

Energy analysts and environmentalists say diesel generators are expensive, noisy, highly polluting and exempt from Clean Air ...