Code of Federal Regulations > Title 40 > Chapter I > Part 1033 > Subpart B - Subpart B—Emission Standards and Related Requirements

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 1033.101 - Exhaust emission standards.

§ 1033.110 - Emission diagnostics—general requirements.

§ 1033.112 - Emission diagnostics for SCR systems.

§ 1033.115 - Other requirements.

§ 1033.120 - Emission-related warranty requirements.

§ 1033.125 - Maintenance instructions.

§ 1033.130 - Instructions for engine remanufacturing or engine installation.

§ 1033.135 - Labeling.

§ 1033.140 - Rated power.

§ 1033.150 - Interim provisions.