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The Pennsylvania Turnpike Commission relaxed the rules that determine which hazardous materials may be trucked through the four mountain tunnels on its toll road.

Orbcomm Global and its Vantage Tracking Solutions division will remain in the trailer-tracking business in spite of a significant layoff in personnel, according to the chairman of the limited partnership.

In the news this morning: Senate sets Friday vote on estate tax repeal; Senate votes against suspending motor fuel taxes; Yellow Freight plans rate increase in August; and more.

This afternoon's headlines: Appeals court upholds STB's rail-merger moratorium; Air Canada, pilots break off talks; Airborne Express looks to trucking to boost business; and more.

Today's technology headlines: How to answer those "How's My Driving" stickers; Feds look into danger of driving while phoning; EarthLink says it won't install FBI's controversial Internet tapping device; and more.

Just how much will the proposed changes in the hours-of-service regulations cost? It depends on who you ask. While the feds estimate the rule will cost $3.4 billion, industry groups say the cost could reach $130 billion.

With backing from an Atlanta venture capital firm, Thomas M. Caudell is turning the lowly business of lumping into a big, high-tech center of profits.

Parcel carriers are used to expedited deliveries and fast transit times, but United Parcel Service is buying a little more speed as an official sponsor of a Nascar racing team.

Trucking in Europe can provide valuable guidance to its U.S. counterparts, according to a study commissioned by the Office of International Programs at the Federal Highway Administration.