The funds from AB 118 will combine with previously allocated Proposition 1B funding to help truckers pay for the engine retrofits and replacements that will be required beginning in 2010 after ARB approves in October the country’s first regulation aimed at cleaning an estimated 420,000 trucks and buses registered in California as well as those coming in from other states.

ARB will work with the Treasurers Office to use the 118 funds to facilitate low interest loans to help truckers install soot filtration devices or completely replace older, dirtier engines.

Funds will also be used to help truckers add devices such as side skirts and wider tires that reduce aerodynamic drag and rolling resistance of trailers, which save fuel and thus lessen greenhouse gas emissions.

Staff re-worked an earlier version of the draft regulation to eliminate the need for truckers to replace trucks twice, instead relying more heavily on retrofits for the first two years of the regulation. The revised proposal has a lower cost while preserving important public health benefits. The proposed regulation now calls for truckers to retrofit pre-2007 model year trucks with soot filters and then requires a gradual modernization of trucks beginning in 2012, so that ultimately all trucks are the cleanest, 2010 or newer models.