Sec. 2. (a) Creditable service is determined under IC 5-10.2-3-1 and this chapter.
(b) A member, whether or not the member is employed under a contract, must serve at least:
(1) one hundred twenty (120) days in a year; or
(2) sixty (60) days in each of two (2) years;
to receive one (1) year of service credit in the fund.
(c) Except as otherwise specified, a member may not be granted more than one (1) year of credit for service in a calendar year or fiscal year.