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Engine Certification Information, Templates, and Tutorials
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Search the new Document Index System (DIS) to find
- Advisory Circulars
- Applications for Certification
- Certificates of Conformity
- Manufacturer Guidance Letters
This web page provides the electronic file templates, and tutorials on using these forms, for certifying some internal combustion engines to EPA standards. The engines to which this information applies are all engines other than engines in light duty vehicles driven on the road. All new engines sold in the US must be certified.
To read files on this page, you might need:
Adobe Reader for PDF files
MS Excel reader for spreadsheet files 
Zip archived files
Contact Foster Morrison (morrison.foster@epa.gov), telephone: 202-343-9298 for help with certification issues. Contact us if you require accessibility help for these files.
| Class | Ignition Type | Size | Templates (FileMaker Format) |
|---|---|---|---|
| Non-road On-highway | Compression Ignition (CI) | Large | 770K ZIP (April 2007) |
| Non-road (Phase II Final) | Spark Ignition (SI) | Small (≤19kW) | 424K ZIP (May 2003) |
| Non-road (Ver. 1.2) | Spark Ignition (SI) | Large(>19kW) | 319K ZIP (February 2008) |
| Marine and IMO (Ver. 1.0) | Compression Ignition (CI) | -- | 437K ZIP (March 2007) |
| Marine (Ver. 2.0) | Spark Ignition (SI) | -- | 256K ZIP (May 2003) |
| Locomotive (Ver. 1.0) | Compression Ignition (CI) | -- | 318K ZIP (October 2003) |
| Snowmobile (Ver. 1.5) | Spark Ignition (SI) | -- | 78K ZIP (May 2007) |
Engine Certification Template Tutorials
Small Non-road Spark-Ignition Engine - Phase II, July 7, 1999
- Installation of the Templates (ZIP file of an EXE file) (610K)
- How to create a record (ZIP file of an EXE file) (711K)
- Sending records to the database (ZIP file of an EXE file) (699K)
- How to submit a running change (ZIP file of an EXE file) (691K)
- How to certify a carry-over engine family ( ZIP file of an EXE file) (685K)
- Issues and information (ZIP file of an EXE file) (615K)
- Production-line testing (PLT) submittals (ZIP file of an EXE file) (899K)
Engine Certification Averaging, Banking & Trading Report Templates
- Large On Highway Compression-Ignition Engine (ZIP file of an Excel file) (87K)
- Large On Highway Spark-Ignition Engine (ZIP file of Excel & PDF files) (110K, May 2008)
- Large Non-road Compression-Ignition Engine (ZIP file of Excel & PDF files) (163K, April 2008)
- Snowmobile Spark-Ignition Engine (ZIP file of Excel & PDF files) (80K, June 2007)
- Small Non-road Spark-Ignition Engine (ZIP file of a FileMaker Pro file) (10K)
- Marine Spark-Ignition Engine (ZIP file of a FileMaker Pro file) (25K)
- Locomotive Engine (ZIP file of Excel & PDF files) (53K)
Engine Certification Guidance Documents
- Large Non-road Spark-Ignition Engine (PDF) (46 pp, 851K, April 2003) (Also available as a PPT file, (46 pp, 588K, April 2003)
- Instructions for Certifying Small Non-road Spark-Ignition Engines (≤19 Kilowatts) (PDF) (31 pp, 92K, April 2007)
- On-Highway & Non-road Compression-Ignition Engine (PDF) (85 pp, 320K, EPA420-B98-002, March 1999) (Also available as a WPD file, 85 pp, 1.6M, EPA420-B98-002, March 1999)
- Marine Spark-Ignition Engine (ZIP of a PDF) (44 pp, 418K, EPA420-B-97-004, April 1997) (Also available as a WPD file, 44 pp, 93K, EPA420-B-97-004, April 1997)
2000 Model Year Credit True-Up Guidance (PDF) (3 pp, 55K) (Also available as a WPD file, 3 pp, 7K)