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 Locomotive engines are significant contributors
to air pollution in many of our nation's cities and ports.
Although locomotive engines being produced today must meet relatively
modest emission requirements set in 1997, they continue to emit
large amounts of nitrogen oxides and particulate matter (PM), both
of which contribute to serious public health problems.
In May 2004, as part of the Clean Air Nonroad Diesel Rule,
EPA finalized new requirements for nonroad diesel fuel that will
decrease the allowable levels of sulfur in fuel used in locomotives
by 99 percent. These fuel improvements will create immediate and
significant environmental and public health benefits by reducing
PM from existing engines.
At the same time, in a separate action, EPA announced its intent
to propose more stringent locomotive engine emission
standards that are modeled after the Clean Air Nonroad Diesel
Engines Program. Such standards would require the use of advanced
emission-control technologies similar to those already upcoming
for heavy-duty diesel trucks and buses. The availability
of clean nonroad diesel fuel required under the new nonroad fuel
standards will enable the use of this technology on locomotive engines.
EPA estimates that NOx and PM emissions could be reduced by 90 percent
by applying such advanced technology to locomotive engines. This
web site provides general and technical information on the locomotive
rulemakings which affect railroads, locomotive manufacturers, and
remanufacturers.
Regulations/Guidance
About PDF Files
- 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" (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"
- Technical Support Document: "Test Procedures for Highway
and Nonroad Engines and Omnibus Technical Amendments"
(EPA420-D-04-004, August 2004) 808K
PDF (70 pages)
- Advance Notice of Proposed Rulemaking (ANPRM):
Reducing Emissions for Locomotive and Marine Diesel Engines
(signed May 11, 2004)
- Federal Register Notice (Published June 29, 2004) HTML
or 273K
PDF (15 pages)
- Locomotive Regulation Workshop
April 7, 1999 1K TXT
- Locomotive Emissions Final Rulemaking, signed December 17, 1997
- Read First 2K TXT
- Federal Register Notice, published 4/16/98
(consists of three separate files)
574K PDF, 466K PDF, 60K PDF and
317K TXT, 336K TXT, 55K TXT
- Docket Listing 61K PDF
- Summary Analysis of Comments 135K ZIP WP5
- Regulatory Support Document 377K ZIP WPD
or 3922K PDF
(All RSD Files Updated 6/98)
- Fact Sheets:
- Requirements for Railroads Regarding Locomotive Exhaust
Emission Standards 94K PDF
- Applicability of Locomotive Emission Standards 78K PDF
- Final Emission Standards for Locomotives 19K PDF
- Environmental Benefits of Emission Standards for Locomotives
39K PDF
- Federal Preemption of State and Local Standards for
Locomotives 11K PDF
- Emission Factors for Locomotives 31K PDF
- Locomotive Emissions Notice of Proposed Rulemaking, signed January
31, 1997
- Future Nonroad Emission Reduction Credits for Locomotives (January
1995)
7K TXT
Links to Related Pages:
For questions or assistance regarding this web page, please contact
the Assessment and Standards Division Information Line at (734) 214-4636
or email: GroupASDInfo@epa.gov. |
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