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The Environmental Protection Agency will hold a public hearing March 5 on a 2007 decision to deny California a waiver allowing the state to implement its own greenhouse gas emission standards for automobiles and light trucks.

RENTON, Wash. — In the struggle to squeeze a few more miles out of each tank of fuel, truck makers are designing tractors with the aid of computer models and wind tunnels more generally used to tweak race cars or airplanes.

Last January, our company launched an “instructor-of-the month” program. We began by inviting directors of truck-driver training programs to nominate individuals, and then we interviewed the winning instructors.

Transport Topics Online will be closed Monday for the Presidents’ Day holiday. Please check back on Tuesday, Feb. 17, for the latest trucking and freight transportation news.

UPS Inc. and the U.S. Postal Service have agreed to work together to make it easier for consumers to return goods purchased online, a move that more closely aligns the nation’s mail delivery system with the largest commercial package carrier.

ORLANDO, Fla. — Kevin Knight, chief executive officer of Knight Transportation, touted trucking’s efforts in recent years to become more environmentally friendly, and said the industry should work to improve its green message to the public.

ARLINGTON, Va. — A top Navistar Inc. official said the company is pursuing its own solution to meet the 2010 U.S. emission standards, because it doesn’t believe the fuel savings claimed by competitors will justify the higher costs and more complicated systems associated with the new engines.

Two key safety indicators improved to their best-ever levels during 2007, according to data just released by the Department of Transportation and analyzed by Transport Topics.