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Diesel’s national average retail price fell for the first time in a month, dipping 0.6 cent to $3.067 a gallon, the Department of Energy reported Monday.

WASHINGTON — The Environmental Protection Agency is revisiting its guidance for selective catalytic reduction technology in heavy-duty trucks as a result of a court settlement with Navistar Inc. earlier this year, an agency official said last week.

YRC Worldwide Inc.’s third-quarter financial results improved on both a year-over-year basis and from the second quarter of 2010, the less-than-truckload company said last week, reporting that tonnage improved and operating losses declined.

Third-quarter earnings rose sharply at four publicly traded truckload companies, as they were able to accelerate the pace of rate increases in a steady freight market.

UPS Inc. said Oct. 21 its third-quarter net income jumped 80% to $991 million from a year earlier, on the strength of higher rates and rising profits for domestic and international packages.

The intermodal business is making a solid contribution to third-quarter rail profits, as volumes remain strong through the fall peak season for domestic freight, industry officials said.

The U.S. retail diesel and gasoline averages both rose again last week, the Department of Energy reported, but the increases slowed as crude oil prices continued a recent slide.

PHOENIX — The Pipeline and Hazardous Materials Safety Administration sent its new proposed “wetlines” regulation to the White House Office of Management and Budget on Oct. 15 for review.

PHOENIX — To pay down some of the debt incurred to build its new Capitol Hill office complex, American Trucking Associations is offering members the chance to purchase commemorative pavers on the building’s rooftop patio.