If you have imported your car from a foreign county, you must follow state laws for registering your vehicle and complying with state emission standards.
www.dmv.ca.gov
specifically:
- Evidence that your foreign import vehicle meets United States (U.S.) Federal Motor Vehicle Safety Standards (FMVSS).
- This is mandatory for vehicles manufactured after 1995.
- This includes the federal certification label attached to the vehicle confirming FMVSS certification.
- Additional evidence: A copy of a letter from the manufacturer confirming that the vehicle meets FMVSS and U.S. emissions standards.
Usually you can only get this evidence for vehicles manufactured in Canada.
- A copy of the Department of Transportation bond release letter from the National Highway Traffic Safety Administration (NHTSA).
- A certificate stating that the vehicle has been inspected by a California Air Resources Board-licensed laboratory.
- Evidence that the vehicle meets Environmental Protection Agency (EPA) and California emissions standards.
- This includes an EPA and California emissions label attached to the vehicle.
- A smog certificate.
- This applies to gasoline vehicles manufactured after 1968.
- This also applies to diesel-powered vehicles manufactured after 1980.
a factory euro vehicle will not meet US EPA and California emission standards.
HBChris says they look for the US emissions sticker in the engine bay and the driver door jam. (the documentation also says this). even then they can reject for any reason.
I believe this was a recent change, but not sure how recent.