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Title 40

Displaying title 40, up to date as of 7/20/2026. 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 LMethods for Unregulated and Special Pollutants and Additional Procedures1065.1101 – 1065.1145
§ 1065.1101Applicability.
Semi-Volatile Organic Compounds1065.1103 – 1065.1111
§ 1065.1103General provisions for SVOC measurement.
§ 1065.1105Sampling system design.
§ 1065.1107Sample media and sample system preparation; sample system assembly.
§ 1065.1109Post-test sampler disassembly and sample extraction.
§ 1065.1111Sample analysis.
Vanadium Sublimation In SCR Catalysts1065.1113 – 1065.1121
§ 1065.1113General provisions related to vanadium sublimation temperatures in SCR catalysts.
§ 1065.1115Reactor design and setup.
§ 1065.1117Reactor aging cycle for determination of vanadium sublimation temperature.
§ 1065.1119Blank testing.
§ 1065.1121Vanadium sample dissolution and analysis in alumina capture beds.
Smoke Opacity1065.1123 – 1065.1127
§ 1065.1123General provisions for determining exhaust opacity.
§ 1065.1125Exhaust opacity measurement system.
§ 1065.1127Test procedure for determining percent opacity.
Accelerated Aftertreatment Aging1065.1131 – 1065.1145
§ 1065.1131General provisions related to accelerated aging of compression-ignition aftertreatment for deterioration factor determination.
§ 1065.1133Application selection, data gathering, and analysis.
§ 1065.1135Determination of key aftertreatment system components.
§ 1065.1137Determination of thermal reactivity coefficient.
§ 1065.1139Aging cycle generation.
§ 1065.1141Facility requirements for engine-based aging stands.
§ 1065.1143Requirements for burner-based aging stands.
§ 1065.1145Execution of accelerated aging, cycle tracking, and cycle validation criteria.