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Title 40

Displaying title 40, up to date as of 6/04/2026. Title 40 was last amended 6/04/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter UAir Pollution Controls1000 – 1099
Part 1054Control of Emissions from New, Small Nonroad Spark-Ignition Engines and Equipment1054.1 – 1054.825
Subpart AOverview and Applicability1054.1 – 1054.30
Subpart BEmission Standards and Related Requirements1054.101 – 1054.145
Subpart CCertifying Emission Families1054.201 – 1054.255
Subpart DProduction-line Testing1054.300 – 1054.350
Subpart EIn-use Testing1054.401
§ 1054.401General provisions.
Subpart FTest Procedures1054.501 – 1054.520
§ 1054.501How do I run a valid emission test?
§ 1054.505How do I test engines?
§ 1054.520What testing must I perform to establish deterioration factors?
Subpart GSpecial Compliance Provisions1054.601 – 1054.690
Subpart HAveraging, Banking, and Trading for Certification1054.701 – 1054.745
Subpart IDefinitions and Other Reference Information1054.801 – 1054.825
§ 1054.801What definitions apply to this part?
§ 1054.805What symbols, acronyms, and abbreviations does this part use?
§ 1054.815What provisions apply to confidential information?
§ 1054.820How do I request a hearing?
§ 1054.825What reporting and recordkeeping requirements apply under this part?
Appendix A to Part 1054
Summary of Previous Emission Standards
Appendix B to Part 1054
Duty Cycles for Laboratory Testing