January 24, 2010

MEMORANDUM

TO: 			Air Docket EPA-HQ-OAR-2005-0161

SUBJECT:	Domestic Agricultural Projections from the Forest and
Agricultural Sector Optimization Model (FASOM)

This memorandum accompanies a spreadsheet on the docket that includes
model results from the FASOM model.  FASOM results were used to estimate
lifecycle greenhouse gas (GHG) emissions produced by the domestic
agricultural sector. These model results were input into a separate
impact calculation spreadsheet to convert the results to GHG emissions
estimates.  For more information about FASOM modeling for lifecycle GHG
analysis refer to RIA Chapter 2. 

