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Title 40

Displaying title 40, up to date as of 7/16/2026. Title 40 was last amended 7/16/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter UAir Pollution Controls1000 – 1099
Part 1065Engine-Testing Procedures1065.1 – 1065.1145
Subpart AApplicability and General Provisions1065.1 – 1065.25
Subpart BEquipment Specifications1065.101 – 1065.195
Subpart CMeasurement Instruments1065.201 – 1065.298
Subpart DCalibrations and Verifications1065.301 – 1065.395
Subpart EEngine Selection, Preparation, and Maintenance1065.401 – 1065.415
§ 1065.401Test engine selection.
§ 1065.405Test engine preparation and maintenance.
§ 1065.410Maintenance limits for stabilized test engines.
§ 1065.415Durability demonstration.
Subpart FPerforming an Emission Test Over Specified Duty Cycles1065.501 – 1065.595
Subpart GCalculations and Data Requirements1065.601 – 1065.695
Subpart HEngine Fluids, Test Fuels, Analytical Gases and Other Calibration Standards1065.701 – 1065.790
Subpart ITesting With Oxygenated Fuels1065.801 – 1065.850
§ 1065.801Applicability.
§ 1065.805Sampling system.
§ 1065.845Response factor determination.
§ 1065.850Calculations.
Subpart JField Testing and Portable Emission Measurement Systems1065.901 – 1065.940
Subpart KDefinitions and Other Reference Information1065.1001 – 1065.1010
§ 1065.1001Definitions.
§ 1065.1005Symbols, abbreviations, acronyms, and units of measure.
§ 1065.1010Incorporation by reference.
Subpart LMethods for Unregulated and Special Pollutants and Additional Procedures1065.1101 – 1065.1145