Hawaii Revised Statutes Division 1. Government § 88-42.6

(a) An elective officer shall be a member of the employees' retirement system; provided that an elective officer shall have a one-time election to be excluded from membership in the employees' retirement system.

(b) Unless the elective officer is a member of the system, a former member of the system, or a retirant, an elective officer shall make the election to be excluded from membership in the system no later than thirty days following the elective officer's taking office. The election shall be irrevocable. If the elective officer fails to make an election to be excluded from membership in the system within the period allowed for making the election, the elective officer shall become a member effective as of the date the elective officer takes office.

(c) Notwithstanding section 88-21, 88-98, 88-273(c), or 88-344, or any other law to the contrary, the retirement allowance of a retirant who returns to service as an elective officer shall not be suspended if the retirant:

If the retirant's retirement allowance is not suspended, the retirant shall not become a member of the system and shall not earn additional service credit or gain any additional retirement benefits.

(d) An elective officer who retired pursuant to section 88-73(d) shall not be eligible for membership in the system while serving as an elective officer.