CA made smog checks on diesels about 5 years ago and grandfathered it back to 1998 models.
THANKS GUYS WHO DRIVE PICKUPS MODIFIED OUT OF THEIR BRAINS WITH REMOVED EGR AND NO CATALYTIC CONVERTERS
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The inspection is rather formal. No probe, no wheel spinning, no OBD plug.
They just take a look under the hood for EGR, check for a puff from tailpipe and sign it off.
I had a feeling 5 years ago that my car was first diesel the young mechanic have seen in his life, but his boss help him to process the papers.
For DP I would call around. I bet somebody having shop with big driveway will be happy to take big money for looking only.
