Maryland State Personnel and Pensions Section 29-106

      (a)      This section applies only to members of:

            (1)      the Correctional Officers' Retirement System;

            (2)      the Employees' Retirement System; and

            (3)      the Teachers' Retirement System.

      (b)      An ordinary disability retirement allowance equals the greater of:

            (1)      a normal service retirement allowance; or

            (2)      the amount computed under subsection (c) or (d) of this section.

      (c)      If a member is at least normal retirement age, the amount to be used under subsection (b)(2) of this section is 25% of the member's average final compensation.

      (d)      If a member is under normal retirement age, the amount to be used under subsection (b)(2) of this section is the lesser of:

            (1)      25% of the member's average final compensation; or

            (2)      the normal service retirement allowance that is computed by using:

                  (i)      the number of years of creditable service that the member would have received if the member continued employment until normal retirement age; and

                  (ii)      an average final compensation that the member would have received if the member continued employment without a change in earnable compensation.