Document ID: EPA-HQ-OAR-2021-0845-0030
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2022-04-18T04:00Z

December 14, 2021
MEMORANDUM
TO:		Air Docket EPA-HQ-OAR-2021-0845
SUBJECT: 	Lifecycle Greenhouse Gas Estimates for Renewable Diesel, Jet Fuel, Naphtha, LPG and Heating Oil Produced from Canola Oil via a Hydrotreating Process
This memorandum describes seven workbooks that contain our lifecycle greenhouse gas (GHG) estimates for biofuels produced from hydrotreated canola oil. The modeling approach and basis for the assumptions and analysis contained in these spreadsheets are described in the preamble for the proposed rule titled, "Renewable Fuel Standard Program: Canola Oil Pathways to Renewable Diesel, Jet Fuel, Naphtha, Liquefied Petroleum Gas and Heating Oil."
Description of workbooks docketed with this memo:
 Hydrotreated Canola Oil Biofuel Lifecycle GHG Estimates -- Contains Information Claimed CBI
      Description: This workbook contains lifecycle GHG estimates for biofuels produced from hydrotreated canola oil. This version of the workbook includes hydrotreating process data that is claimed as confidential business information (CBI).
 Hydrotreated Canola Oil Biofuel Lifecycle GHG Estimates -- Does Not Contain Information Claimed CBI
      Description: This workbook contains lifecycle GHG estimates for biofuels produced from hydrotreated canola oil. The original version of this workbook includes hydrotreating process data that is claimed as confidential business information (CBI). Information claimed CBI has been removed in this version.
 Hydrotreated Canola Oil Biofuel GHG Impact Estimates
      Description: This workbook contains lifecycle GHG estimates for canola oil feedstock used to produce biofuels through a hydrotreating process. 
 Biofuel Life-cycle Emissions Stochastic Model (BSLAM)
      Description: This workbook performs a stochastic analysis of non-U.S. land conversions and associated land use change GHG emissions based on information about the uncertainty associated with uncertainty in the two main inputs: 1) categorization of historical land conversions based on satellite data and 2) land conversion emissions factors. It estimates the mean and 95% confidence interval estimates for land use change GHG emissions. It also reports dynamic land use change emissions over thirty years.
 Hydrotreated Canola Oil Biofuel International Fertilizer and Pesticide GHG Emissions
      Description: This workbook calculates total changes in fertilizer and pesticide use and associated GHG emissions based on crop area and production changes from the FAPRI-CARD model.
 Hydrotreated Canola Oil Biofuel International Crop Energy Inputs and Associated GHG Emissions
      Description: This workbook estimates GHG emissions from changes in crop energy inputs associated with producing biofuels from hydrotreated canola oil.
 Hydrotreated Canola Oil Biofuel FAPRI Results for Lifecycle GHG Analysis
      Description: This workbook contains results from the FAPRI-CARD model for two cases with different levels of canola oil production. The workbook uses these results to calculate crop and pasture area changes and livestock changes between these two scenarios.
Relationship between workbooks
Workbook #
Inputs from other workbooks
Outputs
1 and 2
Domestic and international agricultural emissions per pound of canola oil from #3; International land use change emissions from #4
Lifecycle GHG emissions (gCO2e/MJ of biofuel from hydrotreated canola oil)
3
Domestic agricultural sector results from the FASOMGHG model; International GHG estimates from #5 and #6 
Agricultural sector GHG emissions per pound of canola oil (gCO2e/lb of canola oil)
4
International crop and pasture area changes from #7
International land use change GHG emissions per pound of canola oil (gCO2e/lb of canola oil)
5
International crop area and production changes from #7
Changes in fertilizer and pesticide application and associated nitrous oxide emissions per pound of canola oil
6
International crop area and changes from #7
GHG emissions associated with changes in crop energy inputs per pound of canola oil (gCO2e/lb of canola oil)
7
Inputs are results from the FAPRI-CARD model
Changes in crop production and area, pasture area in Brazil, and livestock production per pound of canola oil