NASHVILLE, Tenn. — ALK Technologies announced its truck navigation software is now integrated with TMW’s fuel optimization product and that its latest update of routing software is integrated with TMW products.

NASHVILLE, Tenn. — Officials of trucking software vendor TMW Systems outlined on Sept. 22 a wide variety of steps, including corporate restructuring and acquisitions that the company has made, to smooth internal operations and user experiences.

LOUISVILLE, Ky. — Navistar Inc. made a big push for natural gas at the Mid America Trucking Show, being held here this week.

BOSTON — Volvo Trucks North America said the United States should adopt a policy of allowing longer, heavier trucks on the nation’s highways as a way to increase driver productivity and to conserve fuel.

Manufacturers of heavy-duty diesel engine oils said they have introduced — or plan to soon introduce — reformulated lubricants designed to meet the requirements of 2007 truck engines. And like just about everything else associated with meeting the government’s tightened emission standards, the new oils will cost more.

Corporate stablemates Volvo Trucks North America and Mack Trucks Inc. said last week they will use selective catalytic reduction to comply with the federal government’s 2010 diesel engine emission standards, becoming the second major truck and engine manufacturing group to commit itself to SCR technology.

Steve Williams, who became the 59th chairman of American Trucking Associations Oct. 7, said he believes there is a transportation crisis looming that will challenge trucking in several fundamental ways and that he wants to strengthen the trucking federation so it can lead the industry to confront the crisis.

Pension-relief legislation that President Bush signed earlier this month probably could save less-than-truckload carriers with unionized employees from having to make additional pension payments, several trucking, pension-industry and congressional representatives said.

The Environmental Protection Agency may delay an August deadline for trucking companies to detail how they plan to contain oil spills on their property, David Evans, the head of the agency’s oil program, said last week.

The Federal Highway Administration has at least $284 million — and perhaps nearly $400 million — in unused funds for transportation projects that should be reallocated to projects where they will be used, the Transportation Department’s inspector general said last week.