Rhode Island General Laws Title 40.1. Behavioral Healthcare, Developmental Disabilities and Hospitals § 40.1-1-8.1. “Developmental disability” defined

(1) Is attributable to a mental or physical impairment or combination of mental and physical impairments;

(2) Is manifested before the person attains age twenty-two (22);

(3) Is likely to continue indefinitely;

(4) Results in substantial functional limitations in three (3) or more of the following areas of major life activity:

(5) Reflects the person's need for a combination and sequence of special, interdisciplinary, or generic care, treatment, or other services that are of lifelong or extended duration and are individually planned and coordinated.