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The U.S. trade deficit shrank by 11% in March as imports fell by the most in four years, the Commerce Department said Thursday.

Vermont’s Senate cut back on a planned gasoline tax increase passed by the House, but proposed raising the state’s diesel tax, the Associated Press reported.

The Alaska State Legislature has passed a bill authorizing up to $275 million for the development, construction and maintenance of a liquefied natural gas plant and distribution system in the state, the Associated Press reported.

The U.S. trade deficit shrank by 3.4% in February, as demand for imported crude oil fell, the Commerce Department said Friday.

Sales of all diesel retrofit devices in the United States declined in 2012 for the fourth consecutive year, according to the Manufacturers of Emission Controls Association.

The Maryland Motor Truck Association will oppose a transportation funding plan put forth by Gov. Martin O’Malley (D) that includes a new sales tax on motor fuel and a 5-cent reduction in the gasoline tax but not in the diesel tax.

Low-carbon fuel standard legislation being debated in the Oregon legislature would cost truckers more than $7 billion a year in extra fuel costs and eliminate 29,000 jobs, according to the Oregon Trucking Associations.

Trucking fleets wasted some $27 billion on fuel and wages as their vehicles sat in traffic jams around the country during 2011, according to a new report from Texas A&M University’s Transportation Institute.

The Environmental Protection Agency proposed a cellulosic biofuel mandate that it said complies with a court ruling that overturned its previous methodology for the mandate.