Final Rule for Determination of Significance for Nonroad Sources and Emission Standards for New Nonroad Compression-Ignition Engine at or Above 37 Kilowatts
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Rule Summary
Referenced Tier Level
- Tier 1
In 1994, EPA finalized the determination of significance of emissions from nonroad engines. EPA also adopted Tier 1 emission standards for nonroad compression-ignition engines at or above 37 kW.
- Final Rule (published June 17, 1994)
Rule History
- Proposed Rule (PDF) (39 pp, 47 MB, published May 17, 1993, About PDF)