Code of Federal Regulations > Title 40 > Chapter I > Part 1048 > Subpart C - Subpart C—Certifying Engine Families

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 1048.201 - What are the general requirements for obtaining a certificate of conformity?

§ 1048.205 - What must I include in my application?

§ 1048.210 - May I get preliminary approval before I complete my application?

§ 1048.220 - How do I amend the maintenance instructions in my application?

§ 1048.225 - How do I amend my application for certification to include new or modified engine configurations?

§ 1048.230 - How do I select engine families?

§ 1048.235 - What emission testing must I perform for my application for a certificate of conformity?

§ 1048.240 - How do I demonstrate that my engine family complies with exhaust emission standards?

§ 1048.245 - How do I demonstrate that my engine family complies with evaporative emission standards?

§ 1048.250 - What records must I keep and make available to EPA?

§ 1048.255 - What decisions may EPA make regarding a certificate of conformity?