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Several truck and engine manufacturers who plan to use selective catalytic reduction technology to meet 2010 emission standards have denied allegations by Navistar Inc. and have asked a federal appeals court to give them standing to argue against Navistar’s lawsuit against the U.S. Environmental Protection Agency.

Wyoming legislators are considering a highway funding plan that could cost trucks more than $100 in tolls to run the full 400 miles across the state on Interstate 80.

A requirement that tank trucks carrying gasoline and other flammable materials be retrofitted with equipment to purge wetlines would kill and injure far more repair shop workers than it would save motorists lives, the head of a tank truck carriers industry group told Congress.

WASHINGTON — The cost of moving and storing goods nationwide fell 3.5% last year, the first decline in logistics-related ex-penses in six years, despite 2% higher transportation expenses. Manufacturers and retailers slashed inventories and excess capacity limited the ability of freight carriers to raise prices, according to a new report.

The average price paid for retail diesel jumped another 7.4 cents last week to $2.572 a gallon, marking the sixth straight week of increases in the price of trucking’s main fuel for a total rise of 38.7 cents, the Department of Energy reported.

Heavy-duty U.S. truck sales continued their severe slide into a fifth month, as retail volume fell 39% in May, while the year-to-date total now lags the pace of last year by 33.9%, according to WardsAuto.com.

Diesel emission standards change again in January 2010, but unlike the previous modifications when all manufacturers used essentially the same emission-controlling technology, medium-duty truck buyers next year will have a choice of competing systems.

WASHINGTON — Setting up what could be a major confrontation between Congress and the White House over transportation policy, a key House committee unveiled a $500 billion blueprint to remake the U.S. transport system, while on the same day the administration instead proposed extending the current plan for 18 months.

An index of leading economic indicators rose 1.2% last month, the New York-based Conference Board said Thursday.