R.I. Gen. Laws § 31-41.1-3: Method of payment.

If the offending operator elects to dispose of the charge without personally appearing before the traffic tribunal, he or she shall execute the form indicated and return it to the traffic tribunal not later than twenty (20) days from the date of the summons, either by mailing or delivering the form and summons, to the violation section of the traffic tribunal, or to its designee, together with a check or money order in the amount indicated by the fine schedule on the form in addition to any technology surcharge applied by the traffic tribunal assessed in accordance with § 8-15-11.