Final Rule Republication for Control of Emissions of Air Pollution From Locomotive Engines and Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder
Rule Summary
The U.S. Environmental Protection Agency (EPA) is adopting standards that will dramatically reduce emissions of diesel particulate matter (PM) and nitrogen oxide (NOx) from locomotives and marine diesel engines. This three-part program aims to (1) Tighten emission standards for existing locomotives and large marine diesel engines when they are remanufactured; (2) Set near-term engine-out emissions standards, referred to as Tier 3 standards, for newly-built locomotives and marine diesel engines; and (3) Set longer-term standards, referred to as Tier 4 standards, for newly-built locomotives and marine diesel engines that reflect the application of high-efficiency aftertreatment technology.
- Final Rule Republication (PDF)(256 pp, 2.1 MB, published June 30, 2008)
- Regulatory Impact Analysis (PDF)(739 pp, 10.26 MB, EPA-420-R-08-001, March 2008)
- Summary and Analysis of Comments (PDF)(463 pp, 2.31MB, EPA-420-R-08-006, March 2008)
Rule History
Additional Resources
Fact Sheet
- EPA Finalizes More Stringent Emissions Standards for Locomotives and Marine Compression-Ignition Engines (PDF)(5 pp, 143 K, EPA-420-F-08-004, March 2008)
Technical Highlights
- Emission Factors for Locomotives (PDF)(9 pp, 262 K, EPA-420-F-09-025, April 2009)