June 22nd, 2012 
Aaron Turpen 
TransFoil Systems Aerodynamic Trailer Skirts reports receiving independent verification of the fuel savings provided by its skirts for over-the-road trailers by the US EPA’s SmartWay Verification program.
The trailer skirts reduce aerodynamic drag and improve fuel economy. The skirts are being required by the California Air Resources Board (ARB) on most 53 foot dry vans entering the state starting in 2013.
TransFoil Systems Aerodynamic Trailer Skirts underwent extensive testing under controlled conditions with the testing supervised by an independent third-party engineering firm. According to company, the aerodynamic skirts returned a fuel savings in excess of 10%.
TransFoil Aerodynamic Trailer Skirts are constructed of an aluminum composite and are mounted using spring-in (60 degrees) and hinge-out (90 degrees) easy swap mounts.
Obtaining the SmartWay Verification enables the company’s customers to qualify under the California Air Resources Board requirements.
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Why pass a law for this stuff? Aren’t people adopting this anyway to save money? What a bunch of tyrants.
Actually, while I normally would agree with you, SmartWay is not a law, it’s a standard for fuel savings. No one is required to meet those standards for anything outside of engine emissions.