R.I. Gen. Laws § 45-21.2-7

Any member in active service who has five (5) years or more of total service and who is not otherwise eligible for retirement may, upon the member’s application or upon application of the employer, be retired on an ordinary disability retirement allowance, subject to the restrictions set forth in §§ 45-21-19, 45-21-20, 45-21-23, and 45-21-24.