SmartWay, the government’s partnership with the freight industry to improve fuel efficiency and reduce trucking’s carbon footprint, has changed its system for ranking carriers on how well they reduce their greenhouse-gas emissions.

Many large carriers operating in California face a Jan. 1 deadline to have SmartWay-approved fuel efficient aerodynamic technology equipment installed on 15% of their pre-2011 trailer fleet.

Many large carriers operating in California face a Jan. 1 deadline to have SmartWay-approved fuel efficient aerodynamic technology equipment installed on 15% of their pre-2011 trailer fleet.