40.02(42)(42) “Normal retirement date” means: 40.02(42)(a)(a) The date on which a participant attains the age of 55 years for a protective occupation participant who terminates covered employment before July 1, 1990, or, for a protective occupation participant who terminates covered employment on or after July 1, 1990, the date on which the participant attains the age of 54 years if the participant has accumulated less than 25 years of creditable service or the age of 53 years if the participant has accumulated at least 25 years of creditable service, except as provided in par. (g). 40.02(42)(b)(b) The date on which a participant attains the age of 62 years for a participant who was an elected official or an executive participating employee before January 1, 2017, except as provided in par. (g). 40.02(42)(d)(d) The date on which a participant attains the age of 65 years for any participant not subject to par. (a) or (b), except as provided in par. (g). 40.02(42)(g)(g) The date applicable to the participant under pars. (a) to (d) at the earlier of either the date it is necessary to make any determination or to take any action relative to the participant for purposes of the retirement system or the date of termination of employment of the participant, notwithstanding the fact that a participant may have been in one or more different employment categories at any previous time except for the purpose of calculating an annuity. For the purpose of calculating an annuity, the normal retirement date for each category provided by pars. (a) to (d) applies to service which is subject to that category. For the purpose of calculating a retirement benefit for an executive participating employee qualifying only under s. 40.02 (30) (b), 1985 stats., a normal retirement date of the date the executive participating employee attains the age of 62 years shall be applied to creditable service of the executive participating employee for which par. (d) would otherwise apply except the number of creditable service years to which that normal retirement date shall be applied under this paragraph may not exceed the number of executive service years of the executive participating employee. 40.02(43)(43) “OASDHI” means federal old-age, survivors, disability and health insurance under Titles II and XVIII of the federal social security act. 40.02(44)(44) “OASDHI benefit” means the primary or disability insurance monthly benefit amount for which a person is eligible, or for which a participant will be eligible upon attaining the lowest age at which old-age benefits are payable under the OASDHI program. 40.02(45)(45) “Participant” means any person included within the provisions of the Wisconsin retirement system by virtue of being or having been a participating employee whose account has not been closed under s. 40.25 (1) or (2). 40.02(46)(46) “Participating employee” means an employee who is currently in the service of, or an employee who is on a leave of absence from, a participating employer under the Wisconsin retirement system and who has met the requirements for inclusion within the provisions of the Wisconsin retirement system under s. 40.22. 40.02(47)(47) “Participating employer” means, for purposes of each of the respective benefit plans, any employer subject to the provisions of that plan under this chapter. 40.02(48)(a)(a) “Protective occupation participant” means any participant whose principal duties are determined by the participating employer, or, subject to s. 40.06 (1) (dm), by the department head in the case of a state employee, to involve active law enforcement or active fire suppression or prevention, provided the duties require frequent exposure to a high degree of danger or peril and also require a high degree of physical conditioning. 40.02(48)(am)(am) “Protective occupation participant” includes any participant whose name is certified to the fund as provided in s. 40.06 (1) (d) and (dm) and who is any of the following: