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LAS VEGAS — The leadership of American Trucking Associations addressed several policy issues here during the group’s annual conference, ranging from the supporting documents fleets need to provide for hours-of-service compliance to what alternative fuels are used in the nation.

LAS VEGAS — Fleet executives said that while going green does provide societal and environmental benefits, the biggest benefit to carriers is that is saves money in fuel and other costs.

Detroit Diesel Corp. completed its filing with the U.S. Environmental Protection Agency for approval of its 2010 truck engines, the third U.S. engine maker to do so, the company said Sept. 29, adding that it also filed with the California Air Resources Board.

The first-ever federal rule for greenhouse gas emissions reporting will not require trucking companies operating medium- and heavy-duty fleets to record and report carbon emissions data.

Just say “no” to the T. Boone Pickens plan and to H.R. 1835, the New Alternative Transportation to Give Americans Solutions Act — the NAT GAS Act of 2009 — a bipartisan bill recently introduced in the House of Representatives by Rep. Dan Boren (D-Okla.).

Detroit Diesel Corp. completed its filing with the U.S. Environmental Protection Agency for approval of its 2010 truck engines, the third U.S. engine maker to do so, the company said Sept. 29, adding that it also filed with the California Air Resources Board.

U.S. retail diesel prices dipped again last week as the national average reached $2.601, 2.1 cents lower than the week before, according to the Department of Energy.

Clean Energy Fuels Corp. will buy BAF Technologies, a supplier of natural gas vehicle systems and conversion technology, for $8.3 million.

In a letter outlining the trucking industry’s critical need for fuel, American Trucking Associations asked the Department of the Interior to approve offshore drilling leases.

If manufacturers’ claims about the latest developments in cargo refrigeration units are correct, motor carriers now can haul fresh, frozen or deep-frozen loads for any distance with reefer-fuel savings of as much as 80%, compared with past costs — and with little or no reefer maintenance.