Regulations for Emissions from Locomotives
In June 2008, EPA finalized a three-part program that dramatically reduces emissions from diesel locomotives of all types -- line-haul, switch, and passenger rail. The rule cuts particulate matter (PM) emissions from these engines by as much as 90 percent and oxides of nitrogen (NOx) emissions by as much as 80 percent when fully implemented. The standards are based on the application of high-efficiency catalytic aftertreatment technology for freshly manufactured engines built in 2015 and later.
EPA standards also apply for existing locomotives when they are remanufactured.
Requirements are also in place to reduce idling for new and remanufactured locomotives.
For more information, see: “Control of Emissions from Idling Locomotives” (4 pp, 143 K, EPA-420-F-13-050, December 2013, About PDF)
List of Related e-CFR Links
See the Electronic Code of Federal Regulations (e-CFR) for the full text of current regulations that apply to locomotives.
|e-CFR link||Summary of what you will find|
|40 CFR Part 1033|
|40 CFR Part 1033.501||Instructions on applying test procedures in 40 CFR Part 1065 to locomotives.|
|40 CFR Part 1033.601||Instructions on applying compliance procedures in 40 CFR Part 1068 to locomotives.|
|40 CFR Part 1065||Exhaust emission test procedures|
|40 CFR Part 1068|
List of Related Regulations
Below is a list of all regulations related to emissions from locomotives.
- Regulatory impact analyses;
- Comment summaries;
- Rule histories (including proposed rules); and
- Fact sheets.*
*Note: Rule-related materials vary by rule.
|Regulation Title||Referenced Tier Level(s)
|Final Rule for Mandatory Reporting of Greenhouse Gases||2009/10|
|Final Rule for Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments||2005/07|
|Final Rule for Control of Emissions of Air Pollution From Locomotive Engines and Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder||Tier 0, Tier 1, Tier 2, Tier 3, Tier 4||2008/06|
|Final Rule for Emission Standards for Locomotives and Locomotive Engines||1998/04|