19-1-302. Conduct of referendum. The governor shall designate the department director, who shall direct the administrator to conduct and supervise a referendum. The referendum must be conducted in accordance with the requirements of section 218(d)(3) of the Social Security Act, 42 U.S.C. § 418(d)(3), on the question of whether service in positions covered by a retirement system established by the state or by a political subdivision thereof should be excluded from or included under this chapter.