R.I. Gen. Laws § 20-7-4: Diver’s lobster license.

A holder of a diver’s license shall take no more than eight (8) lobsters in any one day. It shall be unlawful for any diver to use a spear, gig, gaff, or other penetrating device to harvest lobsters or, while diving, to set, open, or tend lobster pots. It shall be unlawful for lobsters taken by divers to be sold or offered for sale.