(b) Except as provided in subsection (c) of this section, an accidental disability retirement allowance equals the lesser of:

(1) the member’s average final compensation; or

(2) the sum of:

(i) an annuity that is the actuarial equivalent of the member’s accumulated contributions at retirement; and

(ii) a pension equal to two-thirds of the member’s average final compensation.

(c) (1) This subsection applies to a member of a State system other than the Law Enforcement Officers’ Pension System who is at least normal retirement age.

(2) An accidental disability retirement allowance equals the greater of:

(i) a normal service retirement allowance; or

(ii) an accidental disability retirement allowance computed in accordance with subsection (b) of this section.

(d) (1) This subsection applies only to a member of the Employees’ Pension System who:

(i) is promoted within the Department of Corrections to a position that no longer is eligible for membership in the Correctional Officers’ Retirement System as provided in § 25-201 of this article;

(ii) elects not to transfer the years of creditable service the individual accrued in the Correctional Officers’ Retirement System to the Employees’ Pension System; and

(iii) is eligible to receive a vested allowance from the Correctional Officers’ Retirement System.

(2) A member may receive an accidental disability retirement allowance under this section if the member:

(i) does not elect to receive a vested allowance from the Correctional Officers’ Retirement System; and

(ii) transfers the member’s accumulated contributions in the Correctional Officers’ Retirement System to the Employees’ Pension System.