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Mack Trucks introduced a new in-cabin power system as an option, joining several other truck manufacturers — including International, Kenworth and Peterbilt — in offering built-in units to limit idling.

Many manufacturers provide trucking companies with products that use Global Positioning System satellites to help manage their logistics more seamlessly, but have now found an additional use for the technology.

NEW ORLEANS — While great trials may provide drama and public fascination, mediation of accident claims — a process that avoids that drama — is daily life for trucking companies and other transportation providers. Those involved with the system said mediation takes special skills and techniques.

Sales of new Class 8 trucks fell 19.3% in February, while orders for new vehicles plunged more than 70%, according to companies that track the market.

Trucking executives said efforts to ban the use of cellular phones from the nation’s highways would receive industry support as long as state laws do not also ban two-way radios and satellite communication devices.

UNIVERSAL CITY, Calif. — The president of the Long Beach Harbor Commission said a licensing system would be “up and running within five years” at his port and the neighboring Port of Los Angeles to ensure all trucks entering the facilities meet strict emission standards.

The president of trucking software provider TMW Systems said he does not expect a slowdown in sales this year, even as some trucking companies face a downturn in demand for freight-hauling services.

The maintenance managers of two vehicle leasing companies expect few problems in their shops as the truck-operating industry shifts to the next generation of lower-emission diesel engines.

The U.S. Customs and Border Protection agency said Friday that truck carriers entering the United States at all land border ports of entry in California, Texas and New Mexico will be required to present advance electronic cargo information through the Automated Commercial Environment truck manifest system.