40 C.F.R. § 1042.335
Reinstating suspended certificates.
Cite as 40 C.F.R. § 1042.335 (2026)
(a) Send us a written report asking us to reinstate your suspended certificate. In your report, identify the reason for noncompliance, propose a remedy for the engine family, and commit to a date for carrying it out. In your proposed remedy include any quality control measures you propose to keep the problem from happening again. (b) Give us data from production-line testing that shows the remedied engine family complies with all the emission standards that apply.