US to unveil new medium, heavy duty emissions rules

Truck Trend NetworkUS to unveil new medium, heavy duty emissions rulesThe Detroit NewsThe Obama administration has made fuel efficiency and reducing greenhouse gas emissions a major priority — and is also planning to set emissions rules for new airplanes. The White House ultimately reached a deal to nearly double fuel requirements to ...Proposed Rule for Big Trucks Aims at Cutting Fuel EmissionsNew York Timesall 3 news articles »