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The government is eyeballing the dimensions of the hardware that protrudes from tractors and trailers — mirrors, lights and aerodynamic devices — in the context of vehicle length, width and height regulations.

A six-year-old boy with cancer has lost his will to live after his pet beagle disappeared, and the family is asking truckers to help find the dog.

Deteriorating rest areas and a string of highway crimes compelled South Carolina Attorney General Charlie Condon to take a hard look at the safety of the state’s rest stops on the Interstate highway system.

The University of Alabama has been added to a list of schools across the nation that are assisting the federal government to conduct research into what makes transportation tick and how to make its various components work better.

In the news this morning: Teamsters poised to endorse Gore for president; Viking Freight to raise rates in October; DaimlerChrysler pushes for bigger chunk of Mitsubishi; and more.

This afternoon's headlines: Mack Trucks plans second week of production cuts; Hayes Lemmerz second quarter hit by slow truck market; Canada plans to update security, speed traffic at U.S. borders; and more.

Today's technology headlines: Qualcomm rolls out mobile communications systems for metropolitan fleets; TIP takes trailer reservation system online; AOL talks with several wireless carriers; and more.

The national average retail price of diesel fuel reached its highest level ever last week, and it may not have hit its peak.

Five years ago, Alan J. Dabbiere knew his retail distribution software business was on the verge of explosive growth. He also knew that he needed to relocate his company, Manhattan Associates, from Southern California to be closer to his major customers in the Eastern and Central time zones.

Congress returns to Capitol Hill this week from its month-long break, facing a decision on whether to put the Department of Transportation’s hours-of-service rulemaking on ice by freezing its funding.