Code of Federal Regulations > Title 40 > Chapter I > Part 1039 > Subpart B - Subpart B—Emission Standards and Related Requirements

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 1039.101 - What exhaust emission standards must my engines meet after the 2014 model year?

§ 1039.102 - What exhaust emission standards and phase-in allowances apply for my engines in model year 2014 and earlier?

§ 1039.104 - Are there interim provisions that apply only for a limited time?

§ 1039.107 - What evaporative emission standards and requirements apply?

§ 1039.110 - Recording reductant use and other diagnostic functions.

§ 1039.115 - What other requirements apply?

§ 1039.120 - What emission-related warranty requirements apply to me?

§ 1039.125 - What maintenance instructions must I give to buyers?

§ 1039.130 - What installation instructions must I give to equipment manufacturers?

§ 1039.135 - How must I label and identify the engines I produce?

§ 1039.140 - What is my engine's maximum engine power?