UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2565 PLYMOUTH ROAD

ANN ARBOR, MICHIGAN 48105-2498

OFFICE OF

AIR AND RADIATION

                                                                        
          	     

MEMORANDUM

SUBJECT:	Emissions Modeling Data Files for Final 2017-2025 Light Duty
Vehicle GHG Rule

		

FROM:	Margaret Zawacki

		Assessment and Standards Division, Office of Transportation and Air
Quality

		Rich Mason

		Emissions Inventory and Analysis Group, Office of Air Quality Planning
and Standards

TO:		Docket EPA-HQ-OAR-2010-0799-DRAFT-XXXXX

DATE:		August 6, 2012

The purpose of this memorandum is to transmit emissions modeling data
files which were used to prepare air quality modeling inventories for
the final 2017-2025 light duty vehicle greenhouse gas rule.  The
emissions modeling analyses are discussed in the Emissions Inventory for
Air Quality Modeling Technical Support Document: 2017-2025 Light-Duty
Vehicle Greenhouse Gas Final Rule.  The air quality modeling analysis
results are able to be replicated by using the data files provided here
and the information in the Air Quality Modeling Technical Support
Document: 2017-2025 Light-Duty Vehicle Greenhouse Gas Emission Standards
Final Rule.  Following is a brief description of the information
contained on the enclosed DVD.

The files contain county level delimited summaries for criteria
pollutants and select hazardous air pollutants (e.g. benzene,
acetaldehyde, formaldehyde, acrolein, 1,3-butadiene, ethanol,
naphthalene) by emissions modeling sector for the scenarios listed
below.  Summaries are included by month using average day emissions and
separately with annual totals.  

1) 2005 base

2) 2030 Reference

3) 2030 Control

The files contained on the enclosed disc are
“ldghg_database_description final.docx” and “LD GHG
county-sector-month reports with ctl2 02jul2012.accdb”.

Attachments

