OAR Policy and Guidance Metarecord

Document Title/Subject: Heavy-Duty Diesel Emission Reduction Project Retrofit/Retrobuild Component Related Documents:	Signed by: Unsigned Signature Date: June 1999 Contact: Matt Payne	Filename(s): URL(s): http://www.epa.gov/oms/transp/vmweb/finalrep.pdf
Regulatory Authority: Title 2	Division/Director: Transportation and Regional Programs Division (OTAQ) /	Submitted By: barker.jennifer	OGC Contact: CCP n/a - prior to 7/99 OGC Phone#: N/A	Internet Contact: jennifer barker
Document Type: Background Information Documents,	EPA Document Number: EPA420-R-99-014 Federal Register:	Supersedes:
Subject Category: AIR	Keywords: Diesel and locomotives Emissions Engines Fuels Nitrogen oxides Particulate matter Pollutants Trucks and buses Vehicle emissions Emission reduction Heavy-duty diesel fleets Hydrocarbon emissions NOx PM emissions Urban Bus Retrofit/Rebuild program	Terms: Air pollutants Air quality
Abstract: As part of its efforts to encourage voluntary programs and promote consistency in credit calculation, EPA is approving a method to calculate SIP credits from heavy-duty engine retrofit projects. This report describes the guidance, which is not a mandated regulation, but a recommendation that States can follow in their calculation of emissions reductions resulting from heavy-duty engine retrofit projects.