What model year trucks/trailers are applicable to the regulation?
Beginning 1/1/2010 A 2011 model year tractor pulling a box type 53′ ft (or longer) trailer will be subject to the regulation. A sleeper cab that hauls a 53′ ft (or longer) box type trailer must be a “smartway certified” tractor. A day cab that hauls a 53″ ft (or longer) box type trailer must be equipped with smartway approved tires aka “low-rolling resistance tires.” ยท A pre-2011 model year tractor pulling a 53ft (or longer) box type trailer must have low rolling resistance tires.
