Rhode Island General Laws Title 45. Towns and Cities § 45-21-14.2. Leave of absence credits

(a) Members with at least one year of membership credits who have been granted an official leave of absence without pay for illness, injury, educational or, any other reason, may receive credit for the leave by making contributions to the retirement system, in a lump sum, in an amount equal to the contribution the member would have made to the retirement system based upon the member's expected compensation but for the granting of leave without pay, plus regular interest compounded annually to date of payment; provided, that the member returns to service for at least one year immediately upon completion of that leave. Credit for leaves of absence under this section are limited, in the aggregate, during the total service of a member to a period of four (4) years maximum. Effective July 1, 2012, any purchase requested under this paragraph shall be made by a member at full actuarial cost.

(b) The retirement board fixes the time when and the conditions under which payments are made under this section.

(c) This section is exempt from the provisions of §§ 45-13-6 -- 45-13-10.