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Strategies for Reducing Diesel Emissions in Heavy-Duty Engines by 2007

This document outlines the reduction of emissions from heavy-duty engines, targeting a 99% decrease by 2007. Key measures include promoting cleaner fuels, such as biodiesel, and retrofitting older school buses with passive emission controls like Diesel Oxidation Catalysts (DOC). The collaboration with fleet managers hinges on utilizing state and federal grants to enhance diesel emission reduction efforts. Recent proposals aim to increase funding for the Diesel Emission Reduction Act (DERA) significantly, thereby expanding retrofit programs statewide and enforcing stricter idling rules for diesel vehicles.

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Strategies for Reducing Diesel Emissions in Heavy-Duty Engines by 2007

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  1. DEP Mobile Source Control Section Martin Costello

  2. Heavy Duty Engine Emissions Regulations 12 10 99% Reduction in Emissions for New Engines by 2007 1988 8 , g/hp-hr 6 1994 NOx 4 1998 1991 1990 2 2004* 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Particulate Matter, g/hp-hr 2007

  3. Vision • More emphasis on voluntary measures • Address diesel emissions from the legacy fleet… • Collaborating with fleet managers and Transportation Directors to use state and federal grants aimed at reducing diesel emissions.

  4. School Bus: Options for the older engines • Cleaner burning fuel blends (biodiesel) • Passive emission controls to complete the burn (Diesel Oxidation Catalyst) • Repowering with newer engines • Alternative fuels like CNG

  5. Track Record • Manatee and Orange County (and others?) have used blends of biodiesel • Several of the urban school districts have taken advantage of grants and retrofitted school buses with diesel oxidation catalysts (DOC) • Current grant for DOCs on rural school districts in the north Florida Panhandle region- ongoing

  6. Economic Stimulus Package Current proposal to increase funding for the Diesel Emission Reduction Act (DERA) from current levels ($50 million nationwide) to $300 million or more

  7. This could mean • Expanded scope of school bus retrofits to a statewide program

  8. DEP Idle Rule • Went into effect December 15th • Restricts idling to 5 minutes • Exceptions:

  9. Questions?

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