R.I. Gen. Laws § 20-6-6: Registration of boat used in taking of molluscan shellfish.

Each boat used in the commercial taking of oysters, soft-shell clams, surf clams, mussels, or quahaugs, other than by dredging, shall be registered with the director of environmental management. Upon registration, and the payment of a fee of two dollars ($2.00), the boat shall be issued a registration number to be displayed on the boat while engaged in shellfishing.