Significant dollars are being offered to remove some of the big old diesel trucks that contribute mightily to the valley's air pollution. Money is available to replace or retrofit trucks older than 2003. More information on the incentive programs is available in the "Grants and Incentives" section at www.valleyair.org or by e-mail from weberip@valleyair.org , or through the Emission Reduction Incentive Program at 800-766-4463. The money comes from Proposition 1B, the transportation bond approved by voters in November 2006. ...