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Wabash National Backs Government Standards on Fuel Efficiency and Greenhouse Gas Emissions for Medium And Heavy-Duty Vehicles

LAFAYETTE, Ind. —May 26, 2010 — Wabash National Corporation (NYSE: WNC) today announced its participation and support of last week’s White House announcement for plans to create the first-ever national fuel efficiency and greenhouse gas emissions (GHG) standards for medium- and heavy-duty vehicles.

President Obama directed the U.S. Environmental Protection Agency and U.S. Department of Transportation to set these national requirements on medium-and heavy-duty vehicles starting in model year 2014.

A representative of Wabash National was on hand for last week’s event at the White House as a member of the Heavy-Duty Fuel Efficiency Leadership Group. The group is a diverse coalition of medium-and heavy-duty fleets and technology providers, formed in January 2010 to inform and support a workable national program to reduce GHG emissions and improve the fuel efficiency of medium- and heavy-duty vehicles.

"Improving fuel efficiency and developing new aerodynamic solutions has been a growing trend in our industry over the past 5 years,"said President and CEO, Dick Giromini."We recognize and support the need for a well-designed regulatory structure that results in substantial fuel efficiency gains and GHG reductions."

Wabash National continually works to provide innovative solutions based on current market trends.

In July 2009, Wabash National’s DuraPlate Products Group launched the DuraPlate AeroSkirt®, an innovative new aerodynamic accessory for semi-trailers. Testing verified that a trailer equipped with the DuraPlate AeroSkirt can provide a 6 percent fuel efficiency improvement.

About Wabash National
Headquartered in Lafayette, Ind., Wabash National® Corporation (NYSE: WNC) is one of the leading manufacturers of semi trailers in North America. Established in 1985, the company specializes in the design and production of dry freight vans, refrigerated vans, flatbed trailers, drop deck trailers, dump trailers, truck bodies and intermodal equipment. Its innovative core products are sold under the DuraPlate®, ArcticLite®, Eagle® and Benson™ brand names. The company operates two wholly owned subsidiaries; Transcraft® Corporation, a manufacturer of flatbed, drop deck and dump trailers and truck bodies; and Wabash National Trailer Centers, trailer service centers and retail distributors of new and used trailers and aftermarket parts throughout the U.S.

About Wabash National Corporation

Headquartered in Lafayette, Indiana, Wabash National Corporation (NYSE: WNC) is a diversified industrial manufacturer and North America’s leading producer of semi-trailers and liquid transportation systems. Established in 1985, the company manufactures a diverse range of products including: dry freight and refrigerated trailers, platform trailers, bulk tank trailers, dry and refrigerated truck bodies, truck-mounted tanks, intermodal equipment, aircraft refueling equipment, structural composite panels and products, trailer aerodynamic solutions, and specialty food grade and pharmaceutical equipment. Its innovative products are sold under the following brand names: Wabash National®, Beall®, Benson®, Brenner® Tank, Bulk Tank International, DuraPlate®, Extract Technology®, Garsite, Progress Tank, Transcraft®, Walker Barrier Systems, Walker Engineered Products, and Walker Transport. Visit to learn more.