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The Department of Transportation went from being “very close” to opening the border with Mexico to trucks, to preparing a pilot project to allow such trucks to enter the country, to having the border shuttered indefinitely to Mexican truck traffic.

Diesel engine manufacturer Cummins Inc. said late Tuesday that the Environmental Protection Agency has certified the company’s medium- and heavy-duty truck engines for 2007.

Fargo, N.D., trucking firm Lewis Transportation, which has employees in at least seven states, is shutting down after 43 years of operation, the Associated Press reported.

BNSF Logistics said Tuesday it acquired third-party logistics firm Pro-Am Transportation Services, based in Jamestown, N.D. Terms were not disclosed.

Less-than-truckload carrier Pitt Ohio Express said it will start selling an internally developed software package, aimed at improving customer management and reducing bad accounts, to fleets this month.

The Environmental Protection Agency issued guidelines to engine manufacturers governing the use of new technology to meet 2010 emission standards. It also said it will approve pollution rules governing railroad emissions in 2007.

Tech Firm Trimble to Buy AtRoad for $417 Mln. • Trailer Bridge Joins EPA SmartWay Program • CN Gets RFID-Based Chassis Tracking System

Many software providers now “rent” their software to users who do their work through the vendor’s Web site. This is called an application service provider (ASP) model, and it is often offered as a less expensive alternative to buying a software package to be installed on the user’s own server.