Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments
For a list of Heavy-Duty Highway regulations and standards, go to the Regulations and Standards page.
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- Final 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 (also available as a PDF, 4 pp, 134K, EPA420-F-05-036, July 2005)
- Federal Register Notice: Entire Document (also available as a PDF file, 194 pp, 7.4MB)
- Preamble and 40 CFR Parts 85-94 (PDF), pages 40419-40462 (43 pp, 762K)
- 40 CFR Parts 1039, 1048, 1051, and 1068 (PDF), pages 40462-40516 (55 pp, 986K)
- 40 CFR Part 1065 (PDF), pages 40516-40612 (97 pp, 8.6MB)
- Technical Support Document and Summary & Analysis of Comments (PDF) (115 pp, 1.7MB, EPA420-R-05-008, June 2005)
- Proposed Technical Amendments - Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments(published September 10, 2004)
- Fact Sheet: Proposed Changes to Test Procedures for Nonroad Engines and Heavy-duty Highway Engines (PDF) (3 pp, 104K, EPA420-F-04-046, August 2004)
- Federal Register Notice: Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments (PDF) (171 pp, 1.8MB)
- Part A: Pages 54845-54894 (also available as a PDF file, 50 pp, 292K)
- Part B: Pages 54895-54944 (also available as a PDF file, 50 pp, 460K)
- Part C: Pages 54945-54994 (also available as a PDF file, 50 pp, 772K)
- Part D: Pages 54995-55015 (also available as a PDF file, 21 pp, 348K)
- Technical Support Document: Test Procedures for Highway and Nonroad Engines and Omnibus Technical Amendments (PDF) (70 pp, 808K, EPA420-D-04-004, August 2004)