Maryland State Personnel and Pensions Section 30-303

      (a)      An eligible employee shall elect to:

            (1)      join a pension system in accordance with the provisions of this Division II applicable to that system; or

            (2)      participate in the program.

      (b)      An eligible employee shall:

            (1)      make an election under this section in writing; and

            (2)      file the election with the Board of Trustees and the employing institution.

      (c)      The effective date of the election shall be the first day of the month after the election.