Code of Federal Regulations > Title 40 > Chapter I > Part 1033 > Subpart C - Subpart C—Certifying Engine Families

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 1033.201 - General requirements for obtaining a certificate of conformity.

§ 1033.205 - Applying for a certificate of conformity.

§ 1033.210 - Preliminary approval.

§ 1033.220 - Amending maintenance instructions.

§ 1033.225 - Amending applications for certification.

§ 1033.230 - Grouping locomotives into engine families.

§ 1033.235 - Emission testing required for certification.

§ 1033.240 - Demonstrating compliance with exhaust emission standards.

§ 1033.245 - Deterioration factors.

§ 1033.250 - Reporting and recordkeeping.

§ 1033.255 - EPA decisions.