There is a similar exemption in Georgia, no emissions required on anything registered as "antique". But I gotta ask...a 15 year old "classic"? I don't think I would call any car from the '90s or even the '80s a "classic". You might argue over some of the exotics, but they are certainly, IMHO, not classics. OK, maybe an AMC Gremlin,
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'64 230sl, fully sorted out...ooops, spoke too soon