This page contains archive files related to the EPA Draft NONROAD Model, such as prior versions of the model and technical documentation. The primary use of these older drafts is for comparative analyses by professional mobile source modelers, such as state air quality officials and consultants. For the latest public version of the model and guidance on what version to use for SIPs see the main NONROAD model web page.

• Listserver Information
• NONROAD2005 Model
• Draft NONROAD2004 Model
• June 2003 Draft NONROAD2002a Model
• June 2000 Draft NONROAD Model for 2007 HD Highway Rulemaking
• Prior Versions of Model
• Documentation: User Guide
• Other EPA NONROAD Model Documentation
• Workshop Information
• Other Nonroad Reference Material
• Other EPA References
• Links to Related Non-EPA Pages

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.

Listserver Information

• Subscription Instructions and Email addresses
• Important Listserver Notices
  • NONROAD Model Status Update (TXT), 5/21/1999 (clarifies use of NONROAD for SIP purposes)
  • NONROAD Model Status Update (TXT), 6/12/2000 (release of June 2000 Draft in support of 2007 HD highway rule)

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NONROAD2005 Model

(Latest revision was June 2006. For NONROAD2008 please see the main NONROAD model web page.)
• ReadMe page -- known issues and updates to NONROAD2005
• Frequently Asked Questions: Final NONROAD2005 Emission Inventory Model (PDF) (6 pp, 53 K, EPA420-F-05-058, December 2005)
• Overview & Full Installation Instructions - Please follow these instructions closely to install any NONROAD model files.
• NONROAD2005a Core Model and Data Files (2.9M ZIP)
• Graphic User Interface (GUI) full installation (3.9M ZIP) - includes all needed DLL/system files. After you have installed these files once, then you only need to update the GUI executable (nr-gui.exe), as updates become available. This installation includes the June 2006 version of nr-gui.exe (ver 2005.1.0).
• Graphic User Interface (GUI) (106K ZIP) - nr-gui.exe file only (version 2005.1.0), posted June 2006. If you have never installed the GUI on your current computer, you should use the full GUI installation above.
• Reporting Utility files: (download both of these)
  • Reporting Utility version 2005c  (712K ZIP) - reports.mdb file only, Posted 3/27/2006.
  • Auxiliary database files (260K ZIP) - nrdata.mdb and multi-year post-processors, Posted 1/27/2006.
• MS-Access 2002 Runtime software (33M ZIP) - Needed to run Reporting Utility only if you do not already have a copy of Microsoft Access 2002(XP) or later.
• Diesel Fuel Sulfur Inputs by year (TXT) - important for modeling PM and SO2 emissions.
• Fortran Source Code for Core Model (250K ZIP) - Optional, for reference only. Not needed to run model.

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Draft NONROAD2004 Model

• Cautionary Note regarding NIF Output from Draft NONROAD2002a and Draft NONROAD2004 (TXT) (September 15, 2004)
• Postprocessor Tool (MS-Access) - aggregates NONROAD.OUT files into county SCC (or other) totals.
  • Postprocessor tools for NONROAD2002a and 2004 (ZIP) (776K, for Microsoft Access 97 and Access 2000)
  • Instructions for using NONROAD postprocessor tools (TXT)
• Frequently Asked Questions on the Draft NONROAD2004 Emission Inventory Model (PDF) (5 pp, 106K, EPA420-F-04-033, May 2004)
• ReadMe File (TXT)
• Update Notes & Installation Instructions (TXT) - Please read this text file to determine which files to download.
• Diesel Fuel Sulfur Inputs for the Model used in the 2004 Nonroad diesel Engine Final Rule (TXT)
• NIF 2.0 Output Options for the NONROAD Reporting Utility (TXT)
• Updated Core Model, Data Files, GUI, and Reporting Utility (ZIP) (7.1MB) If you have never installed the GUI on your current computer, you will also need the GUI install files below.
• Graphical User Interface DLL files (ZIP) (2.6MB) Needed only if you have never installed a NONROAD GUI before. Once you have installed these files once, then you only need to update the GUI executable, nr-gui.exe, as updates become available.
• Fortran Source Code for Core Model (ZIP) (245K)

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June 2003 Draft NONROAD2002a Model

• Guidance on use of NONROAD model for SIP inventories (PDF) (95K)
• Frequently Asked Questions on this release of NONROAD model (PDF) (4 pp, 91 K, EPA420-F-03-023, June 2003)
• ReadMe File (TXT)
• Update Notes & Installation Instructions (TXT) - Please read this text file to determine which files to download.
• EPA's Newest Draft Nonroad Emission Inventory Model (PDF) (13 pp, 63K) (April 2003 Emission Inventory Improvement Conference paper, compares draft NONROAD2002 to prior version)
• Updated Core Model, Data Files, GUI, and Reporting Utility (ZIP) (6.3MB) If you have never installed the GUI on your current computer, you will also need the GUI install files below.
• Graphical User Interface DLL files (ZIP) (2.6MB) Needed only if you have never installed a NONROAD GUI before. Once you have installed these files once, then you only need to update the GUI executable, nr-gui.exe, as updates become available.
• Fortran Source Code for Core Model (ZIP) (230K)

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June 2000 Draft NONROAD Model for 2007 HD Highway Rulemaking

EPA does not recommend use of the draft NONROAD model in official SIP submittals. It is expected that emission rates and activity levels predicted by the model will change, possibly substantially, after further data collection and analysis. See the May 1999 announcement (TXT) for more information on possible changes.

• June 2000 Update Notes & Instructions (TXT) - Please read this text file to determine which files to download.
• Core Model & Data Files (ZIP) (2MB)
• Reporting Utility, updated subset of files only (ZIP) (275K)
• Reporting Utility, all files (ZIP) (3MB)
• January 2000 Updated Graphical User Interface (GUI)
  • Release Notes (TXT)
  • GUI executable (ZIP) (70K)
• Graphical User Interface DLL files (ZIP) (2.6MB) Needed only if you have never installed the NONROAD GUI before. Once you have installed these files once, then you only need to update the GUI executable, nr-gui.exe, as updates become available.
• Fortran Source Code (ZIP) (230K)
• May 31, 2000 Memo: Changes to the NONROAD Model for the April 2000 Version Used in Support of the 2007 Heavy-duty Diesel Engine Rule (PDF) (31 pp, 100K)

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Prior Versions of Model

• April 1999 Draft NONROAD Model for Tier 2 Proposed Rule
  • Update Notes & Instructions (TXT)
  • NONROAD Model Technical Report Addenda, for Tier 2 Rulemaking Version (PDF) (12 pp, 45 K, EPA420-R-99-008, March 24, 1999)
• June 1998 Draft NONROAD Model
  • October 16, 1998 Model Updates
    • Update Notes & Instructions (TXT)
  • 7/17/98 Model Updates
    • Update Notes & Instructions (TXT)

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Documentation: User Guide

• User Guide from NONROAD2005:
  • NONROAD2005 User's Guide (PDF) (202 pp, 2 MB, EPA420-R-05-013, December 2005)

• User Guide from Draft NONROAD2002a and Draft NONROAD2004:
  • Main body of document without appendices (PDF) (114 pp, 468 K, EPA420-P-02-013, December 2002)
  • Appendices (PDF) (400K, EPA420-P-02-013, reposted December 12, 2002, with EPA document number)

• Original User Guide from June 1998 draft model release:
  • Title Page (PDF) (12K)
  • Table of Contents (PDF) (33K)
  • Chapter 1 Introduction (PDF) (135K)
  • Chapter 2 Getting Started (PDF) (25K)
  • Chapter 3 Graphical User Interface (PDF) (200K)
  • Chapter 4 Core Model (PDF) (220K)
  • Chapter 5 Reporting Utility (PDF) (190K)
  • Chapter 6 Advanced Topics (PDF) (430K)
  • Chapter 7 Trouble Shooting (PDF) (60K)
  • Appendix A FIPS Codes - excerpt: (PDF) (20K) or full text list
  • Appendix B Source Classification Codes (SCC's) (PDF) (175K)
  • Appendix C Examples of Standard Reports (PDF) (55K)
  • Appendix D Examples of Model Comparison Reports (PDF) (35K)

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Other EPA NONROAD Model Documentation

• December 1998 AWMA NONROAD Paper & Presentations (Air and Waste Management Association)
  • Full EPA Paper on Growth & Geographic Allocation (PDF) (37K)
  • EPA Presentation on Growth & Geographic Allocation (PDF) (158K)
  • Environ Corp. Presentation on EPA's New NONROAD Mobile Emissions Model (PDF) (268K)
• 1997 EPA Contract No. 68-D3-0035 Work Assignment No. III-107
  • Task 1A report: Evaluation of Power Systems Research (PSR) Nonroad Population Data Base, E.H. Pechan & Associates, Inc. for US EPA, Sept 1997 (PDF) (136K)
  • Task 1B report: Methodologies for Estimating the Population of Nonroad Engines, Energy and Environmental Analysis, Inc. for E.H. Pechan & Associates, Inc. for US EPA, October 1997 (PDF) (73K)
  • Task 2 report: Comparison of Methods for Projecting Nonroad Equipment Activity Levels, E.H. Pechan & Associates, Inc. for US EPA, September 1997 (PDF) (377K)
• October 1997 AWMA Paper (Air and Waste Management Association)
  • Abstract (TXT)
  • Full Paper (PDF) (46K)
• September 1997 Presentation slides for Early Feedback meeting with EPA Region 5 stakeholders on design of the new NONROAD national emission inventory model (PDF) (480K)

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Workshop Information

• Nonroad Model Workshop #4, November 5, 2002: Ann Arbor: A 3-day modeling workshop was held in Ann Arbor, MI, November 5 through 7, 2002. Only the first day of the workshop (November 5) was devoted to NONROAD model. The second and third days were devoted to the MOVES model and MOBILE6 model, respectively.
  • Workshop Presentations
    
    • Presentations from the 1-day NONROAD Session
      A ZIP (361K) file containing the agenda and all of the presentations in PDF formats
    • Presentations for the 1-day MOVES Session
      A ZIP (1.3MB) file containing the agenda and the presentations in PDF format as well as a transcript of that day's session.
    • Presentations for the 1-day MOBILE6 Session
      The MOBILE6 session consisted of five EPA presentations and a user forum in which three presentations were submitted by individual users.
      A ZIP (1.4MB) file containing the agenda and all five of the EPA presentations in  PDF format
      A ZIP (1.4MB) file containing the agenda and all three of the user submitted presentations in PDF format
  • Workshop Daily Agendas (final version)
    • NONROAD Session (November 5) (TXT)
    • MOVES Session (November 6) (TXT)
    • MOBILE6 Session (November 7) (TXT)
  • Workshop Announcement and Tentative Agenda (PDF) (395K)
• Nonroad Model Workshop #3, June 25, 1998 - Chicago:
  • Workshop Presentation Overheads/Handouts
    • EPA presentations (PDF) (900K) (plans, detailed input data descriptions, etc.)
    • Environ presentation (PDF) (600K) (model calculation methodology)
  • June 3, 1998 Federal Register Notice
  • Updated June 25, 1998, Workshop Announcement (Chicago)
  • Preliminary Agenda for Workshop
• Nonroad Model & MOBILE6 Workshop #2: Nonroad Model presentation, October 2, 1997.
  • Draft Workshop Agenda
  • Workshop Announcement: August 29, 1997 Federal Register Notice
• Nonroad Model & MOBILE6 Workshop #1: 2-day workshop in Ann Arbor, MI, March 19 & 20, 1997
  • March 20, 1997 Presentation of EPA NONROAD Emission Inventory Model Plans (PDF) (65K)
    
  • Nonroad Outline (TXT)
  • Invitation Letter (TXT)
  • Draft Fed Register Notice (TXT)

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Other Nonroad Reference Material

• Analysis of Commercial Marine Vessels Emissions and Fuel Consumption Data (PDF) (158 pp, 2.6 MB, EPA420-R-00-002, February 2000)
• Commercial Marine Activity in the United States - Final Reports (posted Sept 23, 1999)
  • Great Lake and Inland River Ports (PDF) (84 pp, 352 K, EPA420-R-99-019, September 1999)
  • Deep Sea Ports (PDF) (241 pp, 587 K, EPA420-R-99-020, September 1999)
• Aviation emissions regulations & guidance (aircraft and ground support equipment)
• Voluntary Emission Reduction Program for Airport Ground Support Equipment (GSE Study and GSE Emissions Model)

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Other EPA References

• Table of Info Sources for Nonroad Emission Factors (PDF) (9K, updated Feb 1999)
• Emission Inventory Preparation
  • Procedures for Emission Inventory Preparation - Volume IV: Mobile Sources (from National Transportation Library of the US Dept of Transportation, also available as a PDF (240 pp, 2.98 MB, EPA420-R-92-009, December 1992) )
• AP-42
  • Status of Work to Update AP-42 Nonroad Emission Factors
  • 1996 Statement of Work to Update AP-42 Nonroad Emission Factors (work was never completed) (TXT)
• November 1991: Nonroad Engine and Vehicle Emission Study Report (Publication no. EPA-21A-2001 or EPA460/3-91-002).
  • Read the Nonroad Engine and Vehicle Emission Study at Nonroad page.

Links to Related Non-EPA Pages

• CARB Mobile Source Emission Inventory Branch (California Air Resources Board)

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