2001 Volkswagen Jetta Q&A

2001 Volkswagen Jetta Question: what causes unsupported to show up on n.j. inspection

went to n.j.inspection twice first time showed up with a lot of n/a but dealer had just put in a new battery causing it to have to be reset,so drove 500 miles took back but then was told it was showing unsupported but what are the causes for that to come up -
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