Code of Federal Regulations > Title 40 > Chapter I > Part 1054 > Subpart C - Subpart C—Certifying Emission Families

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Sep 17, 2025

§ 1054.201 - What are the general requirements for obtaining a certificate of conformity?

§ 1054.205 - What must I include in my application?

§ 1054.210 - May I get preliminary approval before I complete my application?

§ 1054.220 - How do I amend my maintenance instructions?

§ 1054.225 - How do I amend my application for certification?

§ 1054.230 - How do I select emission families?

§ 1054.235 - What testing requirements apply for certification?

§ 1054.240 - How do I demonstrate that my emission family complies with exhaust emission standards?

§ 1054.245 - How do I determine deterioration factors from exhaust durability testing?

§ 1054.250 - What records must I keep and what reports must I send to EPA?

§ 1054.255 - What decisions may EPA make regarding a certificate of conformity?