R.I. Gen. Laws § 4-15-10: Delivery of unclaimed animal to city or town treasurer.

If no owner appears within five (5) days from the date of notification, or notice, and pays the penalty and charges, the poundkeeper shall deliver the animal to the city or town treasurer of the city or town, with a statement, in writing, of the time and manner in which the animal was impounded and of the proceedings of that poundkeeper in relation to the animal, together with an account of the charges and expenses due from the owner of the animal to the poundkeeper by virtue of this chapter.