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Trimble Navigation Ltd. said it has agreed to purchase TMW Systems Inc. for $335 million in a deal that will bring the largest transportation software provider under the same ownership as PeopleNet Communications Corp., which Trimble acquired a year ago.

Daniel Ustian last week stepped down and retired as chairman, CEO and president of Navistar International Corp., as the company he helped to build saw its financial fortunes turn after its 13-liter engine failed to comply with federal emissions standards.

The White House approved a regulation that could allow Navistar Inc. to resume selling heavy-duty diesel engines that violate 2010 emissions standards while paying a penalty.

The texting ban for Ohio drivers took effect Aug. 31, the Associated Press reported.

Several major traffic arteries around near New Orleans are closed because of lingering floods from Hurricane Isaac, the Associated Press reported Thursday.

Initial jobless claims were little changed at 374,000 in the week ending Aug. 25, matching the prior week’s revised figure, the Labor Department said Thursday.

Personal spending rose for the first time in three months, gaining 0.4% in July, the Commerce Department said Thursday.

Two more companies have ex­pressed interest in taking over operations at the Port of Virginia, creating alternatives to an earlier offer from Maersk, which operates the largest container shipping fleet.

Components maker Eaton Corp. said it is developing a power control system to reduce battery size, with a focus on hybrids including both passenger cars and commercial vehicles.