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Two U.S. senators last week unveiled a carbon emissions reduction bill observers said would significantly increase the cost of diesel fuel.

Two senators unveiled a long-awaited carbon emissions reductions bill Wednesday that could spur increases in the cost of diesel fuel for motor carriers.

The California Air Resources Board has directed its staff to come up with specific proposals by September to provide additional flexibility to help truckers ease the financial pain of complying with the state’s new truck regulations.

Review of the 2007 generation of diesel engines has been a very hot topic this year. At the annual American Trucking Associations Technology & Maintenance Council meeting, I was one of the panelists asked to score the performance of the 2007 engines based on TransAm’s experiences.

Forward Air Corp. reported a first-quarter profit of $3.4 million, or 12 cents per share, compared with a loss of $3.1 million, or 11 cents, a year ago.

The huge ash cloud hanging over Europe from last week’s volcano eruption in Iceland is hampering global air freight and causing a shift in European cargo from planes to trucks, news services reported.

Maine has adopted legislation that will eventually require heating oil to have the same low-sulfur content as diesel fuel used in trucks, a move some in the oil and trucking industries fear could raise demand and prices for trucking’s main fuel.

State and federal grants totaling $585,000 will help 15 trucking companies in Utah install auxiliary power units, the Associated Press reported.

California environmental regulators can continue enforcing the state’s transportation refrigeration unit retrofit rule, a federal appeals court has ruled.

LOUISVILLE, Ky. — Navistar Inc. has introduced the ProStar Plus, a lighter, more fuel-efficient version of its ProStar Class 8 tractor.