Nonroad Engines, Equipment, and Vehicles
Lawn and Garden (Small Gasoline) Equipment
Consumer Information
- Healthy Lawn, Healthy Environment; Caring for Your Lawn in an Environmental Friendly Way ( (PDF) (19 pp, 5.38MB, EPA700-K-92-005, June 1992)
- Environmental Guidelines for Responsible Lawn Care and Landscaping (PDF)
(28 pp, 594K) - Green Landscaping with Native Plants
- Composting yard waste
- Used Oil Management
Related Links
- Emission Standards Reference Guide
- Certification Tools
- Engine Certification Information Center
- Stationary Spark-ignition Engines
- Large SI Engines
- Snowmobiles, Dirt Bikes, and ATVs
- Gasoline Boats and Personal Watercraft
- Diesel Equipment (farm, construction, ...)
- Certification Fees
- Importing Vehicles and Engines
NOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.
EPA has adopted emission standards to control both exhaust and evaporative emissions from small spark-ignition engines. Phase 3 exhaust emissions standards take effect in 2011 or 2012, depending on the size of the engine. Evaporative emission standards address fuel permeation through fuel-system components in addition to fuel venting during engine operation.
Regulations and Guidance
See the Electronic Code of Federal Regulations (e-CFR) for the full text of current regulations that apply to Small SI engines and equipment:
| 40 CFR part 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 |
| 40 CFR part 90 | Phase 1 and Phase 2 Exhaust emission standards and compliance; test procedures available through 2012 model year |
- Summary of exhaust emission standards and evaporative emission standards
- Guidance Documents
- Bond Requirements for Nonroad Spark-Ignition Engines (PDF) (7 pp, 524K, EPA-420-F-10-034a, August 2010)
- 2015 Amendments (published February 19, 2015)
- Direct Final Rulemaking (PDF) (48 pp, 1.04MB)
- See “2015 Amendments” for more information.
- 2013 Amendments (published June 17, 2013)
- Fact sheet: EPA Issues Amendments to the Heavy-Duty Highway Greenhouse Gas Rule and Other Nonroad Provisions (PDF) (3 pp, 534K, EPA-420-F-13-001, May 2013)
- Direct Final Rule (PDF) (38 pp, 652K)
- 2010 Amendments (published November 8, 2010)
- Final Rule (PDF) (20 pp, 366K)
- See Heavy-duty Highway Engines for more information
- Phase 3 Emission Standards (published October 8, 2008)
- Fact Sheet: EPA Finalizes Emission Standards for New Nonroad Spark-Ignition Engines, Equipment, and Vessels (5 pp, 205K, EPA-420-F-08-013, September 2008)
- Fact Sheet: New Phase 3 Engine Standards Affecting Retailers and Importers of Lawn and Garden Equipment (PDF) (4 pp, 373K, EPA-420-F-09-031, August 2009)
- Final Rule (PDF) (347 pp, 3.65MB)
- Final Regulatory Impact Analysis
- Summary and Analysis of Comments (PDF)
- Presentation summarizing new rulemaking provisions (PDF) (31 pp, 721K, October 23, 2008)
- See the rulemaking docket for additional information
- See the Proposed Rule page for the proposed rule and supporting documents (published May 18, 2007).
- Emission Standards for Stationary Spark-ignition Engines (published January 18, 2008)
- Final Rule (PDF) (47 pp, 370K)
- See Stationary SI Engines for more information
- 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) (4 pp, 134K, EPA420-F-05-036, July 2005)
- Final Rule (PDF) (193 pp, 7.48MB)
- Technical Support Document and Summary & Analysis of Comments
- See Proposed Technical Amendments for the proposed rule and supporting documents (published September 10, 2004)
- 2004 Amendments to the Phase 2 Requirements for Handheld Engines (published January 12, 2004)
- Final Rule (PDF) (12 pp, 201K)
- 2002 Technical Amendments to 40 CFR part 90 (published November 8, 2002)
- Final Rule (PDF) (206 pp, 1.15MB)
- See the final rule page for other related documents regarding the final rule
- Phase 2 Exhaust Emission Standards for Handheld Engines (published April 25, 2000)
- Fact Sheet: Final Phase 2 Standards for Small Spark-Ignition Handheld Engines (PDF) (6 pp, 23K, EPA420-F-00-007, March 2000)
- Final Rule(PDF) (47 pp, 447K)
- Final Regulatory Impact Analysis (PDF) (163 pp, 872K, EPA420-R-00-004, March 2000)
- Summary and Analysis of Comments (PDF) (73 pp, 229K, EPA420-R00-005, March 2000)
- See Proposed Emission Standards for proposed rules and supporting documents (published July 28, 1999)
- Phase 2 Exhaust Emission Standards for Nonhandheld Engines (published March 30, 1999)
- Fact Sheet (PDF) (5 pp, 22K, EPA420-F-99-008, March 1999)
- Final Rule (PDF) (48 pp, 525K)
- Regulatory Impact Analysis (PDF) (173 pp, 469K, March 1999)
- Summary and Analysis (PDF) (103 pp, 317K, March 1999)
- Docket Index (PDF) (31 pp, 88K March 1999)
- See Proposed Emission Standards for proposed rules and supporting documents (published February 3, 1999)
- 1996 Amendment to Phase 1 Carbon Monoxide Standard for Nonhandheld Engines (published November 13, 1996)
- Final Rule (PDF) (6 pp, 170K)
- Phase 1 Small Engine Phase 1 Emission Standards (published July 3, 1995)
- Final Rule (PDF) (76 pp, 890K)
- Final Regulatory Impact Analysis (PDF) (311 pp, 11.5MB, May 1995)
- Summary and Analysis of Comments (PDF) (122 pp, 7.42MB, May 1995)