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For nearly 100 years drivers at UPS Inc. have been known around the world by their brown uniforms. Now comes a newly designed uniform, and, yes, the iconic brown remains.

A $20 billion investment spree detailed by UPS CEO David Abney last year, a plan that initially rattled Wall Street, is bearing fruit. Profit margins are improving even as 112-year-old Big Brown copes with swelling volume from voracious online shoppers, who are typically less lucrative to serve than business customers.

WASHINGTON — The Justice Department says United Parcel Service Inc. must pay $8.4 million to settle allegations that the company was overcharging the federal government for package deliveries.

Daimler Trucks North America announced the production of the 750,000th vehicle built at its Cleveland, N.C., truck manufacturing plant. Keys to the milestone vehicle, a Freightliner new Cascadia, were presented to representatives from UPS Inc.

UPS Inc. has agreed to buy the equivalent of 170 million gallons of renewable natural gas from Clean Energy Fuels Corp. over the next seven years in what the company described as the biggest-ever deal involving the alternative fuel.

The U.S. Supreme Court turned away a UPS Inc. appeal that aimed to force the U.S. Postal Service to raise its prices for delivering packages.

Paccar Inc.’s engine plant in Columbus, Miss., reached a milestone recently by producing its 200,000th MX engine for the North American market.

UPS Inc. and a startup drone partner began the first continuing commercial drone deliveries in the United States, making a short flight carrying a medical sample between North Carolina hospitals March 26.