(a) A member may retire with a normal service retirement allowance if:
(1) on or before the date of retirement, the member:
(i) has at least 20 years of eligibility service;
(ii) 1. is a correctional case management specialist, supervisor, or manager on or before June 30, 2016;
2. is vested in the Correctional Officers’ Retirement System; and
3. has a combined total of at least 20 years of eligibility service from:
A. the Correctional Officers’ Retirement System and the Employees’ Retirement System; or
B. the Correctional Officers’ Retirement System and the Employees’ Pension System;
(iii) 1. is serving in a position specified in:
A. § 25–201(a)(8) or (9) of this title on or before June 30, 2017; or
B. § 25–201(a)(10) or (11) of this title on or before June 30, 2018;
2. is vested in the Correctional Officers’ Retirement System; and
3. has a combined total of at least 20 years of eligibility service from:
A. the Correctional Officers’ Retirement System and the Employees’ Retirement System; or
B. the Correctional Officers’ Retirement System and the Employees’ Pension System; or
(iv) is at least 55 years old and has:
1. at least 5 years of eligibility service credit, if the member is a member on or before June 30, 2011; or
2. at least 10 years of eligibility service credit, if the member becomes a member on or after July 1, 2011; and
(2) the member completes and submits a written application to the Board of Trustees stating the date when the member desires to retire.
(b) On retirement under this section, a member is entitled to receive a normal service retirement allowance that equals one fifty–fifth of the member’s average final compensation multiplied by the number of years of creditable service.
(c) (1) This subsection applies only to:
(i) a correctional case management specialist, supervisor, or manager who has a combined total of 20 years of eligibility service as provided in subsection (a)(1)(ii) of this section; or
(ii) a member serving in a position specified in § 25–201(a)(8), (9), (10), or (11) of this title who has a combined total of 20 years of eligibility service as provided in subsection (a)(1)(iii) of this section.
(2) A member is entitled to receive a normal service retirement allowance that equals an allowance based on the creditable service the member has in the Correctional Officers’ Retirement System.