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Freight railroad Union Pacific Corp. Tuesday boosted its third-quarter earnings forecast due to lower fuel prices and improved operating efficiency.

WASHINGTON — Congress may link any change in truck size- and-weight limits in upcoming highway legislation to a new commercial vehicle-miles-traveled tax, Rep. Peter DeFazio (D-Ore.), chairman of the House Highway and Transit Subcommittee, said last week.

A day after a record rise, oil fell to close below $107 a barrel, as continued uncertainty over a U.S. financial bailout plan and a stronger U.S. dollar led investors to shed commodities, the Associated Press reported.

More than 1,500 truckers at the Port of Oakland, Calif., have applied for 1,000 subsidies to retrofit their trucks to reduce emissions, the San Francisco Business Times reported Monday.

Trucking companies could do more to enforce rules that drivers get enough rest, and the government should consider moving toward mandating the use of new technologies to alert tired truckers, the Associated Press reported.

Heavy-duty truck components supplier Eaton Corp. said its Vorad VS-400 collision-warning system has become a factory-installed option on all Freightliner Cascadia, Century and Columbia Class 8 trucks.

Driver turnover rates in the second quarter reached the lowest level in at least eight years as opportunities to switch employers were reduced by carriers’ decisions to trim their fleets in a sluggish freight market.

When members of American Trucking Associations gather next month in New Orleans, the main topic of discussion will be the 2009 federal highway bill, ATA President Bill Graves said.

Heavy-duty U.S. truck sales grew for a third straight month in Au-gust, but at a still anemic rate over a weak August 2007, according to the latest monthly survey by WardsAuto.com.