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Changes announced in December to the federal hours-of-service rule rely on a “sham” of an analysis and unjustifiable assumptions, American Trucking Associations told a federal court last week, urging the court to overturn the provisions of the rule that restrict the 34-hour restart and require an off-duty break.

UPS Inc. raised second-quarter earnings to $1.12 billion, with help from its less-than-truckload unit, but the biggest parcel and freight carrier warned that its second-half profit will be diminished by a weakening U.S. economy.

WASHINGTON — While expressing support for a proposed electronic stability control mandate for heavy vehicles, the companies that make those vehicles strongly objected to the regulation’s test procedure for getting vehicles certified and urged federal regulators to consider alternative tests.

Volvo Trucks and Paccar Inc. last week announced plans to cut production, citing a slowdown in North American Class 8 truck orders.

U.S. retail diesel and gasoline prices rose for the third straight week, taking back more of the substantial cost drops that dominated the second quarter of the year, the Department of Energy reported July 23.

Echo Global Logistics said its second-quarter profit rose as revenue climbed.

Consumer confidence dropped in July to the lowest level this year, according to the Thomson Reuters/University of Michigan consumer sentiment index released Friday.

The U.S. economy grew at a 1.5% annual rate in the second quarter as consumers trimmed spending, the Commerce Department reported Friday.

Oshkosh Corp. said higher defense sales pushed its fiscal 2012 third quarter income to $75.7 million compared with $68.4 million reported in the year ago period.