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If people won’t voluntarily avoid using handsets while operating a motor vehicle, there are ways to render cellular connections inoperable, or at least report the driver’s activities to management.

Roadrunner Transportation Services Holdings Inc. said it bought less-than-truckload carrier Bullet Freight Systems Inc. on Dec. 14 to expand its services in the western United States.

Today’s new diesel-power trucks are, by law, equipped with particulate filters, and in many models the DPF will soon will be joined by another aftertreatment device — selective catalytic reduction, or SCR, in a canister.

Donaldson Co., a manufacturer of filtration systems, said Monday it is spending $5 million to enable one of its plants to manufacture parts that comply with the Environmental Protection Agency’s 2010 diesel emission standards.

TMW Systems last week acquired Innovative Computing Corp., combining two of the best-known names in the marketplace and expanding the reach of the largest provider of fleet-management software.

Greatwide Logistics’ purchase of YRC Worldwide Inc.’s U.S. dedicated contract carriage assets will expand and diversify its business into new geographical regions and markets, Chief Executive Officer Ray Greer said.

TMW Systems has acquired fellow trucking software provider Innovative Computing Corp., the companies announced Tuesday.

Representatives of several high-tech firms said they already are marketing, or soon will offer, systems designed to prevent motorists from texting and talking on cell phones while driving their vehicles.

Navistar Inc., which said it has spent $600 million to develop its 2010 exhaust gas recirculation engine, said the company is losing sales of next year’s model because federal regulators “helped create the false impression” among customers that only urea-based after-treatment systems would meet 2010 federal emissions standards.