Forklifts, Generators, and Compressors (gasoline/propane)

This Web page covers nonroad spark-ignition engines over 19 KW(25 hp). This includes many kinds of equipment including forklifts, generators, and many other farm, industrial and construction applications. These engines may operate on propane, gasoline, or natural gas. Information on marine propulsion engines is available on the Gasoline Boats and Personal Watercraft page. Information on spark-ignition engines for recreational vehicles is on the Snowmobiles, Dirt Bikes and ATVs page. Information on smaller spark-ignition engines is on the Lawn and Garden (small gasoline equipment) page.

Contact:  ASD Information, phone:  (734) 214-4636 or email: asdinfo@epa.gov for further information on documents contained on this Web page.

About PDF Files

Regulations/Related Documents

Proposed Technical Amendments (published September 10, 2004)

• Fact Sheet: "Proposed Changes to Test Procedures for Nonroad Engines and Heavy-Duty Highway Engines" (EPA420-F-04-046, August 2004) 104K PDF (3 pages)
• Federal Register Notice: "Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments"
  • Entire Document 1.8M PDF (171 pages)
    • Part A: Pages 54845-54894 HTML or 292K PDF
    • Part B: Pages 54895-54944 HTML or 460K PDF
    • Part C: Pages 54945-54994 HTML or 772K PDF
    • Part D: Pages 54995-55015 HTML or 348K PDF
• Technical Support Document: "Test Procedures for Highway and Nonroad Engines and Omnibus Technical Amendments" (EPA420-D-04-004, August 2004) 808K PDF (70 pages)

Final Emission Standards (published November 8, 2002)

• Certification guidance presentation, 499K PPT or 800K PDF
• Fact sheet: Emission Standards for New Nonroad Engines— Large Industrial Spark-ignition Engines, Recreational Marine Diesel Engines, and Recreational Vehicles (EPA420-F-02-037) 409K PDF
• Federal Register Notice (published November 8, 2002) 1.1M PDF
  
• Summary and Analysis of Comments (EPA420-R-02-023) 462K ZIP WPD or 1M PDF
  
• Final Regulatory Support Document (EPA420-R-02-022) 1.2M ZIP WPD or 2.5M PDF
  
  • Regulatory Support Document by Chapter
• Environmental Impacts of Newly Regulated Nonroad Engines (EPA420-F-02-033) 24K PDF
  
• Frequently Asked Questions from Facility Managers and other Owners of Industrial Spark-ignition Engines (EPA420-F-02-041) 399K PDF
  
• How to Maintain or Rebuild Engines Certified to EPA Standards (EPA420-F-02-035) 407K PDF
  
• Emission Regulations for Stationary and Mobile Engines (EPA420-F-02-034) 479K PDF
  
• Blue Sky Series Engines (EPA420-F-02-036) 397K PDF
  
• Plain-Language Format of Emission Regulations for Nonroad Engines (EPA420-F-02-046) 405K PDF
  
• Large SI transient duty cycles 133K XLS
  
• Docket index (as of Sept. 13, 2002) 750K WPD or 689K PDF
  
• "Evaluation of Emissions Durability of Nonroad LPG Engines Equipped with Three-Way Catalysts" Final Report from Southwest Research Institute. Paper copies of this document are available from the National Technical Information Service (NTIS) Publication #PB2002-101191.

  Other documents regarding the final rule are available at http://www.epa.gov/otaq/regs/nonroad/2002/cleanrec-final.htm

Proposed Emission Standards (published October 5, 2001)

• Fact sheet: Emission Standards for New Nonroad Engines   (EPA420-F-01-026)
• Federal Register Notice (published October 5, 2001)
• Draft Regulatory Support Document  (EPA420-D-01-004)
• Draft Regulatory Support Document by Chapter
• Frequently Asked Questions:  Emission Standards for Industrial Spark-ignition Engines  (EPA420-F-01-028)
• Large SI Engine Technologies and Costs  (EPA420-R-01-045)
• Final Report of the Small Business Advocacy Review Panel - Control of Emissions from Nonroad Large Spark Ignition Engines, Recreational Engines (Marine and Land-based), and Highway Motorcycles

Other documents regarding the proposed rule are available at http://www.epa.gov/otaq/regs/nonroad/proposal/cleanrec.htm

Advance Notice of Proposed Rulemaking - Control of Emissions from Nonroad Large Spark-Ignition Engines, Recreational Engines (Marine and Land-Based), and Highway Motorcycles (published December 7, 2000)

Proposed Finding for Large SI and Land-based Recreational SI Engines (published February 8, 1999)

"Nonroad Engine and Vehicle Emission Study Report"
(Publication no. EPA-21A-2001 or EPA460/3-91-002, November 1991)

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.

Body of report	1.8M PDF
Appendices	7.7M PDF

Paper copies of this study are available from the National Technical Information Service (NTIS) - Publication #PB-92-126960.

Links to Related EPA Pages:

• Engine Certification Information Center
• Lawn and Garden (Small Gasoline) Equipment
• Snowmobiles, Dirt Bikes, and ATVs
• Gasoline Boats and Personal Watercraft
• Diesel Equipment (farm, construction, ...)
• Compliance Fees
• Importing Vehicles and Engines