The Engine Compliance Checker is only applicable to federally and privately owned Diesel-powered vehicles
with a GVWR greater than 14,000 lbs.
This guide is not meant to replace legal counsel and only provides general
guidelines. It is up to the user to determine final regulatory requirements.
Vehicles that fall under
regulation exemptions
may require reporting in the Excluded Diesel Vehicle Reporting system in order to avoid having their registration erroneously blocked by California DMV.