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msei -- EMFAC2011 Project Level Assessment Tools and Minor Correction Posted: 08 Feb 2013 10:41:02
The California Air Resources Board is providing a new handbook and tools that describe how to use EMFAC2011 for project level assessment and allow easier access to emission factor data. For more information please visit: http://www.arb.ca.gov/msei/msei.htm In addition, we are releasing revised versions of EMFAC2011-LDV and EMFAC2011-SG to correct the calculated number of motorcycle and motorhome starts in Santa Clara County. This correction fixes an overestimate of emissions from those vehicles that was unique to Santa Clara County. No other areas of the state were affected, and emissions in all other areas of the State are unchanged. All EMFAC users should visit the ARB EMFAC2011 website to download the latest version of these two modules. If you have questions, please email the Mobile Source Emissions Inventory Branch staff at firstname.lastname@example.org and we will respond promptly to your requests. Background: EMFAC is Californiaís model for estimating on-road mobile source emissions inventories for air quality and transportation planning, regulatory assessment, and project-level assessment. EMFAC2011 was released in 2011 to meet federal air quality and transportation planning guidelines.