ChopsJazz,
The answer is "No", the BBSC is not smog legal in CA until it is tested and approved by the California Air Resources Board (CARB) as an aftermarket part for the NSX. I decided to wait for CARB approval, because I'm not interested in removing a supercharger every two years that I need smog check. The CARB website shows tons of other aftermarket superchargers (e.g. Comptech) and turbochargers for other cars that have been approved by CARB, so I think there's a good likelihood that Mark will get approval. Hopefully approval of 3.0 liter system will be accepted by CARB also for the 3.2 liter NSX. If not, both cars will have to be tested by CARB.
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NSXY
95 NSX-T, 5 sp, Red/Tan, Tubi exhaust, Dali street anti-sway bars, Dunlop SP9000s