Synopsis As Introduced Creates the Illinois Diesel Emissions Reduction Act. Creates the Illinois Diesel Emissions Reduction Funding Program and the Diesel Emissions Reduction Fund. Provides that moneys in the Fund shall be used only to implement the Funding Program. Requires the collection of a surcharge on the retail sale or lease of certain diesel vehicles that are of a model year 2006 or earlier and are not equipped with Level 3 Controls. Requires a similar surcharge on the registration of certain diesel vehicles. Requires IEPA, in consultation with the Department of Revenue and after notice and public comment, to promulgate rules to establish and implement the Diesel Emissions Reduction Funding Program. Sets out guidelines for the administration of the Diesel Emissions Reduction Funding Program and the corresponding grant and rebate programs. Provides that IEPA may seek injunctive relief in any court of competent jurisdiction to enforce any provision of the Funding Program. Effective immediately.