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Lawn and Garden (Small Gasoline) Equipment 

EPA has finalized a new emission control program to

reduce hydrocarbon emissions from small sparkignition engines by about 35 percent. The new 

exhaust emissions standards will take effect in 2011 

or 2012, depending on the size of the engine. The final 

rule also includes new standards to reduce 

evaporative emissions from these fuel systems. These 

standards will reduce the harmful health effects of

ozone and carbon monoxide from these engines. 

This page provides consumer information, regulations, 

guidance, and compliance fee and certification data for 

ten categories of nonroad spark-ignition engines, ranging from lawn and garden equipment 

through airport service equipment. For the homeowner, there is information about 

maintaining a yard and lawn, while minimizing air pollution from spark-ignition engines. For 

additional information about our emission standards, see our Fact Sheet: Final Emission 

Standards for New Nonroad Spark-ignition Engines, Equipment, and Vessels | PDF Version (5 

pp, 208K, EPA420-F-08-013). 

Consumer Information 

Regulations and Guidance 

Related Links 

Consumer Information 

Information on Imports of Vehicles, Engines and Equipment 

Small SI Engine Emission Standards: Answers to Commonly Asked Questions from 

Dealers and Distributors (PDF) (2 pp, 58K, EPA420-F-98-025, August 1998) 

Your Yard and Clean Air (PDF) (2 pp, 16K, EPA420-F-94-002, September 1996) 

Use of Reformulated Gasoline in Nonroad Engines (EPA 420-F-95-007, April 1995) 

Composting Yard Trimmings and Municipal Solid Waste (PDF) (151 pp, 6MB, EPA530-R94-003, May 1994) 

Collecting Used Oil for Recycling/Reuse: Tips for Consumers Who Change Their Own 

Oil (PDF) (8 pp, 220K, EPA 530-F-94-008, March 1994) 

Regulations and Related Documents 

See the Electronic Code of Federal Regulations (e-CFR) for the full text of current 

regulations that apply to Small SI engines: 

40 CFR part 90 Phase 2 Exhaust emission standards and compliance 

program; 2009 standards for evaporative emissions

40 CFR part 

Nonroad Engines, Equipment, and Vehicles Last updated on Tuesday, March 09, 2010

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Guidance Documents

Forms and Instructions for Certifying to the Evaporative Emission Standards 

(ZIP) (150K) 

Instructions for Certifying Small Non-road Spark-Ignition Engines (≤19 

Kilowatts) (PDF) (31 pp, 92K, April 2007) 

Instructions for Certifying Imported Mini Trucks (PDF) (16 pp, 358K, EPA420-B-09-

028, June 2009) 

Bond Requirements for Nonroad Spark-Ignition Engines (PDF) (7 pp, 326K, EPA420-F-09-027, May 2009) 

Bond Worksheet (Excel Document) (2 worksheets, 64K) 

Final Rule: Control of Emissions from Nonroad Spark-Ignition Engines and 

Equipment (published October 8, 2008) 

Fact Sheet: New Phase 3 Engine Standards Affecting Retailers and Importers of 

Lawn and Garden Equipment - Frequently Asked Questions | PDF Version (4pp, 

373K, EPA-420-F-09-031, August 2009,) 

Fact Sheet: EPA Finalizes Emission Standards for New Nonroad Spark-Ignition 

Engines, Equipment, and Vessels | PDF Version (5 pp, 205K, September 2008, 

EPA420-F-08-013) 

Presentation summarizing new rulemaking provisions (PDF) (31 pp, 721K, October 

23, 2008) 

Final Rule (PDF) (348 pages, 5,468 K, published October 8, 2008) 

Final Regulatory Impact Analysis (PDF) (808 pp, 8.5MB, September 2008, EPA420-R08-014) Instead of downloading the entire document, you can access individual

chapters. 

Summary and Analysis of Comments (PDF) (480 pp, 3.1MB, September 2008, 

EPA420-R-08-016) Instead of downloading the entire document, you can access 

individual chapters. 

See the Proposed Rule page for the proposed rule, fact sheet, and technical 

support documents (published May 18, 2007). 

Proposed Emission Standards for Stationary Spark-ignition Engines 

(published June 12, 2006)

Federal Register Notice | PDF Version (53 pp, 316K) [see 71 FR 33804] 

Fact Sheet 

Final 2005 Technical Amendments – Procedures for Testing Highway and Nonroad 

Engines and Omnibus Technical Amendments (published July 13, 2005) 

Fact Sheet: Regulatory Announcement: Changed Test Procedures for Nonroad 

Engines and Heavy-Duty Highway Engines | PDF Version (4 pp, 134K, EPA420-F-05-

036, July 2005) 

Federal Register Notice: 

Part 1, pp 40419-40468 | PDF Version (949K)

Part 2, pp 40469-40518 | PDF Version (938K)

Part 3, pp 40519-40568 | PDF Version (6.71MB)

Part 4, pp 40569-40612 | PDF Version (1.8MB) 

Technical Support Document and Summary & Analysis of Comments (PDF) (115 

pp, 1.7MB, EPA420-R-05-008, June 2005)

1054 Phase 3 Exhaust emission standards

40 CFR part 

1060 Evaporative emission standards

40 CFR part 

1065 Phase 3 Engine-testing regulations

40 CFR part 

1068 Phase 3 General compliance provisions 

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See Proposed Technical Amendments for the proposed rule, fact sheet, and 

technical support documents (published September 10, 2004) 

Final 2004 Amendments to the Phase 2 Requirements for Handheld Engines

(published January 12, 2004) | PDF Version (13 pp, 197K) 

Final 2002 Technical Amendments to 40 CFR part 90 

Federal Register Notice (published November 8, 2002) | PDF Version (208 pp, 

1.1MB) 

Final Rule - Phase 2 Emission Standards for Handheld Engines (published 

April 25, 2000)

Fact Sheets 

Final Phase 2 Standards for Small Spark-Ignition Handheld Engines | PDF 

Version (6 pp, 23K, EPA420-F-00-007, March 2000) 

Minor Amendments to Emission Requirements Applicable to Small 

Nonroad Spark-Ignition Engines and Marine Spark-Ignition Engines | PDF 

Version (6 pp, 17K, EPA420-F-00-008, March 2000) 

Federal Register Notice (PDF) (48 pp, 415K) or TEXT 

Final Regulatory Impact Analysis (PDF) (163 pp, 872K, EPA420-R-00-004)

Appendix B 161K Excel or 54.7K Lotus 1-2-3 

Appendix C 437K Excel or 66.4K Lotus 1-2-3 

Appendix D 19.5K Excel or 14.1K Lotus 1-2-3 

Appendix E 209K Lotus 1-2-3208K Lotus 1-2-3 

Appendix F 37K Excel or 17.2K Lotus 1-2-3 

Summary and Analysis of Comments (PDF) (73 pp, 229K, EPA420-R00-005, March 

2000) 

See Proposed Emission Standards for proposed rules, fact sheets, and related 

documents 

Final Rule - Phase 2 Emission Standards for Nonhandheld Engines (published 

March 30, 1999) 

Federal Register Notice | PDF Version (49 pp, 405K) 

Fact Sheet (PDF) (5 pp, 22K, EPA420-F-99-008, March 1999) 

Summary and Analysis (PDF) (317K) 

Regulatory Impact Analysis (PDF) (469K) 

Regulatory Impact Analysis Appendices 

Appendix C (PDF) (7K) or 72K Lotus 1-2-3 

Appendix E (PDF) (7K) or 243K Lotus 1-2-3 

Appendix F (PDF) (8K) or 32K Lotus 1-2-3 

Docket Index (PDF) (88K) 

See Proposed Emission Standards for proposed rules, fact sheets, and related 

documents 

Public Workshop on Phase 2 Nonroad Small SI Engines - May 26, 1999 

Presentation Material (142K, PowerPoint) 

Dear Manufacturer Letter 

Final 1997 amendments related to Replacement Engines Final Rule Federal Register 

Notice (published August 7, 1997) 

Final 1996 Amendment to Phase 1 Carbon Monoxide Standard for Nonhandheld 

Engines (published November 13, 1996) 

Link to Final Rule November, 13, 1996 

June 1996 Notice of Proposed Rulemaking (ZIP WP51) (17K) 

Fact Sheet: (PDF) (2 pp, 10K, EPA420-F-96-005, June 1996) or 4K TXT 

Summary 

Final 1996 Amendments related to reporting requirements 

May 8, 1996 Revised Reporting Requirements, Nonroad small spark ignition & large 

compression ignition engines 

Direct Final Rule

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Proposed Rule

July 3, 1995 Phase 1 Small Engine Final Rule Phase 1 Emission Standards 

Small SI Engine Manufacturers Guidance Document (ZIP PDF) (226K) 

November 1991 - Nonroad Engine and Vehicle Emission Study Report (Publication no. 

EPA-21A-2001 or EPA460/3-91-002). 

Body of Report (PDF) (141 pp, 1.8MB) 

Appendices (PDF) (415 pp, 7.7MB) 

This "nonroad study" quantifies the contribution of nonroad sources to air pollution, 

including volatile organic compounds (VOCs), oxides of nitrogen (NOx), carbon 

monoxide (CO), and particulate matter (PM). The study covers 10 equipment 

categories, including: lawn and garden equipment, farm and construction equipment, 

recreational vehicles, marine vessels, and airport service equipment. 

Paper copies of this study are available from the National Technical Information 

Service (NTIS) - Publication #PB-92-126960. 

Related Links: 

Green Landscaping with Native Plants, EPA Region 5 

Healthy Lawn, Healthy Environment: Caring for Your Lawn in an Environmental 

Friendly Way (EPA700-K-92-005, June 1992). This small EPA brochure gives tips on 

working with nature to grow a lawn that is healthy while minimizing the use of 

pesticides. 

For further information or assistance regarding this page, please contact EPA's Assessment 

and Standards Division voicemail at: (734) 214-4636 or email: ASDinfo@epa.gov. 

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