Engine Certification Data
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Verify Compliance Information System
Verify: EPA's Engine and Vehicle Compliance Information System is now online. Learn more about Verify.
Search for Documents
Search the Document Index System (DIS) database to find:
- Advisory Circulars
- Applications for Certification
- Certificates of Conformity
- Certificate Summary Information Reports
- Manufacturer Guidance Letters
- Verify System Documentation
Please Note
Description of the four file types to download.
To read files on this page, you might need:
This page provides certification data from various engine manufacturers for past and current model years.
Please contact us if you require accessibility help for these files
Certification data on this page
- On-Highway Engines
- Non-road Large Compression Ignition (CI)
- Non-road Small Spark Ignition (SI)
- Marine SI
- Marine Large CI
- Snowmobile SI
- Locomotive
- Large Spark Ignition
- Non-road Evaporative Components
Information on certifying engines and vehicles with EPA:
Large Engine (On-Highway and Nonroad Compression-Ignition) Certification Data
1998 Model Year
- All Engine Family Information (FileMaker Pro Format) [1.2MB ZIP]
- Engine Family General Information [720K WK1]
- Engine Family Model Information (WK1 Format) [790K ZIP]
- Engine Family Part Number Information [980K WK1]
1999 Model Year
(last updated 1/23/02)
- All Engine Family Information (FileMaker Pro 5 Format) [1.7MB ZIP]
- Engine Family General Information (WK1 Format) [430K ZIP]
- Engine Family Model Information (WK1 Format) [210K ZIP]
- Engine Family Part Number Information [970K WK1]
2000 Model Year
(last updated 1/23/02)
- Engine Family Information (FileMaker Pro 5 Format) [2.3MB ZIP]
- Engine Family Model Information (FileMaker Pro 5 Format) [2.3MB ZIP]
- Engine Family Part Number Information (FileMaker Pro 5 Format) [1.5MB ZIP]
- Engine Family General Information (WK1 Format) [600K ZIP]
- Engine Family Model Information (WK1 Format) [1.1MB ZIP]
- Engine Family Part Number Information (WK1 Format) [210K ZIP]
2001 Model Year
(last updated 1/17/02)
- All Engine Family Information (FileMaker Pro 5 Format) [2.2MB ZIP]
- Engine Family Model Information (FileMaker Pro 5 Format) [1.8MB ZIP]
- Engine Family Part Number Information (FileMaker Pro 5 Format) [1.1MB ZIP]
- Engine Family General Information (WK1 Format) [670K ZIP]
- Engine Family Model Information (WK1 Format) [770K ZIP]
- Engine Family Part Number Information (WK1 Format) [210K ZIP]
2002 Model Year
(last updated 12/11/02)
- All Engine Family Information (FileMaker Pro 5 Format) [2.1MB ZIP]
- Engine Family Model Information (FileMaker Pro 5 Format) [1.0MB ZIP]
- Engine Family Part Number Information (FileMaker Pro 5 Format) [820K ZIP]
- Engine Family General Information (WK1 Format) [280K ZIP]
- Engine Family Model Information (WK1 Format) [320K ZIP]
- Engine Family Part Number Information (WK1 Format) [170K ZIP]
2003 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel formats) (5.3MB, February 2004)
2004 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (5.4MB, March 2005)
2005 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (3.6MB, March 2006)
2006 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (3.9MB, January 2007)
2007 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 7 and Excel files) (27M, March 2009)
2008 — 2009 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 7 and Excel files) (27MB, March 2009)
Nonroad Small Spark-Ignition Engine Certification Data
1997 Model Year
- All Engine Family Information (FileMaker Pro Format) [200K ZIP]
- Engine Family General Information [290K WK1]
- Engine Family Model Information [120K WK1]
- Engine Family Part Number Information [150 WK1]
1998 Model Year
- All Engine Family Information (FileMaker Pro Format) [420K ZIP]
- Engine Family General Information [500K WK1]
- Engine Family Model Information [310K WK1]
- Engine Family Part Number Information [500K WK1]
1999 Model Year
(last updated 1/23/02)
- All Engine Family Information (FileMaker Pro 5 Format) [500K ZIP]
- Engine Family General Information (WK1 Format) [120K ZIP]
- Engine Family Model Information [340K WK1]
- Engine Family Part Number Information [570K WK1]
2000 Model Year
(last updated 1/23/02)
- All Engine Family Information (FileMaker Pro 5 Format) [550K ZIP]
- Engine Family General Information (WK1 Format) [140K ZIP]
- Engine Family Model Information [330K WK1]
- Engine Family Part Number Information [450K WK1]
2001 Model Year
(last updated 1/17/02)
- All Engine Family Information (FileMaker Pro 5 Format) [580K ZIP]
- Engine Family General Information (WK1 Format) [160K ZIP]
- Engine Family Model Information [360K WK1]
- Engine Family Part Number Information [440K WK1]
2002 Model Year
(last updated 12/11/02)
- All Engine Family Information (FileMaker Pro 5 Format) [490K ZIP]
- Engine Family General Information (WK1 Format) [250K ZIP]
- Engine Family Model Information [410K WK1]
- Engine Family Part Number Information [540K WK1]
2003 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (1.1MB, September 2003)
2004 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (2.5MB, March 2005)
2005 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (1.9MB, March 2006)
2006 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (2.4MB, January 2007)
2007 — 2009 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 7 and Excel files) (7.1MB, March 2009)
Marine Spark-Ignition Engine Certification Data
1998 Model Year
- All Engine Family Information (FileMaker Pro Format) [140K ZIP]
- Engine Family General Information [110K WK1]
- Engine Family Model Information [170K WK1]
- Engine Family Part Number Information [180K WK1]
1999 Model Year
(last updated 1/23/02)
- All Engine Family Information (FileMaker Pro 5 Format) [210K ZIP]
- Engine Family General Information [880K WK1]
- Engine Family Model Information [460K WK1]
- Engine Family Part Number Information [880K WK1]
2000 Model Year
(last updated 1/23/02)
- All Engine Family Information (FileMaker Pro 5 Format) [200K ZIP]
- Engine Family General Information [840K WK1]
- Engine Family Model Information [220K WK1]
- Engine Family Part Number Information [640K WK1]
2001 Model Year
(last updated 1/17/02)
- All Engine Family Information (FileMaker Pro 5 Format) [190K ZIP]
- Engine Family General Information [770K WK1]
- Engine Family Model Information [110K WK1]
- Engine Family Part Number Information [400K WK1]
2002 Model Year
(last updated 12/11/02)
- All Engine Family Information (FileMaker Pro 5 Format) [150K ZIP]
- Engine Family General Information [120K WK1]
- Engine Family Model Information [100K WK1]
- Engine Family Part Number Information [150K WK1]
2003 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (390K, September 2003)
2004 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (620K, March 2005)
2005 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (520K, August 2005)
2006 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (420K, March 2006)
2007 — 2009 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 7 and Excel files) (860K, March 2009)
Marine Large Compression-Ignition Engines Certification Data
2004 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (740K, March 2005)
2005 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (770K, March 2006)
2006 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 5 and Excel files) (830K, January 2007)
2007 — 2009 Model Year Engine Family and Models & Parts Information (Zip file with FileMaker Pro 7 and Excel files) (1.4MB, March 2009)
Snowmobile Spark-Ignition Engines Certification Data
2004 — 2009 Model Year Engine Family Test Information (Zip file with FileMaker Pro 7 and Excel files) (900K, March 2009)
Locomotive Compression-Ignition Engines Certification Data
2002, 2003, 2004, & 2005 Model Year Engine Family Information, Certification Test Results, Notch Data, Models and Parts Information (Zip file of Excel file) (20K, February 2006)
2006 & 2007 Model Year Engine Family Name, Certification Test Results, Useful Life Information (Zip file of Excel file) (20K, April 2007)
Large Spark-Ignition Engines Certification Data
2004 & 2005 Model Year Engine Family Information, Certification Test Results, Models, and Parts Information (Zip file of Excel file) (30K, February 2006)
2006 & 2007 Model Year Engine Family Information, Certification Test Results, Models, and Parts Information (Zip file of Excel file) (30K, February 2007)
2008 & 2009 Model Year Engine Family Information, Certification Test Results, Models, and Parts Information (Zip file of Excel file) (10K, April 2009)
Non-road Evaporative Components Certification Data
2009 & 2010 Model Year Engine Family Information, Certification Test Results, Models, and Parts Information (Zip file of Excel file) (140K, March 2009)
For database questions, contact Foster Morrison (morrison.foster@epa.gov), telephone: 202-343-9298
Descriptions of the four file types to download on this page
Engine certification data are available in the following electronic file formats
Model Year 2003 and Later Format
- FileMaker Pro (FP5)
- Excel (XLS)
To obtain the FileMaker Pro and Excel formats for a particular model year, download the file with the *.zip extension.
******YY.zip - This file contains a FileMaker Pro file and an Excel file that is identical to the information that is available to the public.
Note: The asterisks identify the industry. The double Y's represent the model year.
Model Year 2002 and Earlier Format
- FileMaker Pro (FP3)
- Lotus (WK1)
To obtain the FileMaker Pro format for a particular model year, download the file with the *.zip extension.
To obtain the Lotus format for a particular model year, download the three files with the *.wk1 extension.
The four different files that you may need to download for engine certification information are:
- ******YY.zip - This file is a FileMaker Pro file that is identical to the information that is available to the public.
Note: The asterisks identify the industry. The double Y's represent the model year.The next three files are in Lotus format and contain the same information as in the Zip file above.
- ***genYY.wk1 - This file is a Lotus Spreadsheet file that contains general information about engine families.
Note: This information can be found in the family, test, and AB&T forms (if applicable.) - ***modYY.wk1 - This file is a Lotus Spreadsheet file that contains engine model information.
Note: This information can be found in the model summary form. - ***prtYY.wk1 - This file is a Lotus spreadsheet file that contains part number information.
Note: This information can be found in the part number summary form.