R.I. Gen. Laws § 27-6-4: Considerations in ratemaking.

Rates shall be made in accordance with the following provisions:

(1) Manual, minimum, or class rates, rating schedules, or rating plans shall be made and adopted, except in the case of specific inland marine rates, on risks specially rated;

(2) Rates shall not be excessive, inadequate, or unfairly discriminatory; and

(3) Due consideration shall be given to past and prospective loss experience within and outside of this state, to the conflagration and catastrophe hazards, to a reasonable margin for underwriting profit and contingencies, to dividends savings or unabsorbed premium deposits allowed or returned by insurers to their policyholders, members, or subscribers, to past and prospective expenses both country-wide and those specially applicable to this state, and to all other relevant factors within and outside of this state. In the case of fire insurance rates consideration shall be given to the experience of the fire insurance business during a period of not less than the most recent five-year (5) period for which that experience is available.