Only the southern species, Charina umbratica, is protected by the CA fish and game. The northern species, C.bottae, is allowed to be collected, with a limit of 2. CA residents with a non-captive breeding permit can breed them I believe (like L.zonata), but can only keep a limit of 30 (who needs thirty rubber boas lol).

I think it is due to habitat destruction that many Southern CA herps, like L.zonata pulchra and C.umbratica, are heavily protected.

I love rubber boas, but feel they are best left outdoors where they can live out thier rubbery lives