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The selective catalytic reduction process that most engine manufacturers will use to comply with 2010 federal diesel emission standards could emit toxic byproducts, the California Air Resources Board’s top researcher wrote in a recent letter filed in federal court by Navistar Inc.

Several measures affecting trucking advanced in Congress recently as a key Senate committee ap-proved a bill to allow trucks weighing more than the federal limit on Interstate 95 in Maine, and a bill providing tax incentives for idle-reducing units was introduced in the House of Representatives.

U.S. retail fuel prices continued to rise last week, as the average cost of a gallon of diesel climbed 2.2 cents to $2.55 a gallon, while gasoline jumped 5.4 cents to $2.557, the second straight week of increases, the Department of Energy reported.

The Financial Accounting Standards Board and its sister organization are working jointly on reviewing changes to the current U.S. Financial Accounting Standards 13 and International Accounting Standards 17 for leasing.

Tank truck carrier Quality Distribution reported a second-quarter loss of $186.2 million, or $9.58 per share, compared to income of $400,000, or 2 cents, a year ago.

Evergreen Transportation has filed for Chapter 11 bankruptcy protection, the truckload carrier said in a statement on its Web site.

U.S. factory orders rose in June a third straight month, the Commerce Department said Wednesday.

The U.S. economy’s service sector showed a downturn in activity last month, the Institute for Supply Management said Wednesday.