California regulators on Friday restored ambitious rules to cut transportation fuel emissions 10 percent within five years, a decision that gives Gov. Jerry Brown a boost for his climate change agenda ...

WASHINGTON (CN) - The Federal Aviation Administration has adopted a new airworthiness directive (AD) that requires replacing the Hydromechanical Metering Unit (HMU) in the Turbomeca Arriel 2D ...

Fuel-pressure regulators are fuel-pressure regulators are fuel-pressure regulators, right? Wrong! While they all accomplish the same purpose, there is a big range when it comes to price, material, ...

A rule aimed at reducing carbon dioxide and other greenhouse gas emissions from heavy- and medium-duty trucks will take effect in two months, federal regulators announced Oct. 25. The Environmental ...