R.I. Gen. Laws § 16-16-13.1
In the case of any teacher who is a member of the employees' retirement system of the state created by chapter 8 of title 36 who, at the time of retirement, has had at least thirty (30) years or more of total service, the teacher shall receive an annual retirement allowance of not less than thirty-four hundred dollars ($3,400) per year with an additional increment of two hundred dollars ($200) for each additional year of service up through a total of thirty-eight (38) years to a maximum of five thousand dollars ($5,000); provided that this section shall not apply in the case of any teacher who has elected an option for payment of pension and has thereby reduced the amount received to less than the amounts set forth in this section.
R.I. Gen. Laws § 16-16-13.1