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Regulations for Emissions from Vehicles and Engines

Regulations for Emissions from Heavy Equipment with Spark-Ignition Engines

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This page provides regulations for nonroad spark-ignition (SI) engines over 19 kW (25 horsepower), including many kinds of equipment, such as forklifts, generators, and many other farm, industrial and construction applications. These engines may operate on propane, gasoline, or natural gas.

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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 Large SI engines.

e-CFR link Summary of what you will find
40 CFR Part 1048 Emission standards and certification requirements
40 CFR Part 1060 Evaporative emission standards and test procedures
40 CFR Part 1065 Exhaust emission test procedures (for lab and in-field testing)
40 CFR Part 1068 General compliance provisions

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List of Related Regulations

Below is a list of all regulations related to emissions from heavy equipment with spark-ignition engines.


For help on using the table:
Click the regulation titles for additional information, including:
  • Rule summaries;
  • Regulatory impact analyses;
  • Comment summaries;
  • Rule histories (including proposed rules); and 
  • Fact sheets.*

*Note: Rule-related materials vary by rule.

Regulation Title Regulation Date
Greenhouse Gas Reporting Program (GHGRP) 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 From Nonroad Large Spark-Ignition Engines, and Recreational Engines (Marine and Land-Based) 2002/11
Final Rule for Control of Emissions From Nonroad Spark-Ignition Engines and Equipment 2008/10

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