Maryland Election Law Section 9-310

      (a)      An absentee ballot shall be enclosed in specially printed envelopes, the form and content of which shall be prescribed by the State Board.

      (b)      (1)      A local board may use either two envelopes or three envelopes.

            (2)      If two envelopes are used, the inner envelope shall be designated the "ballot/return envelope", and, when issued, it shall fit inside the envelope designated the "outgoing envelope".

            (3)      If three envelopes are used, the innermost envelope shall be designated the "ballot envelope", which shall fit inside the envelope designated the "return envelope", both of which, when issued, shall fit inside the envelope designated the "outgoing envelope".

      (c)      When voted and returned to the local board, an absentee ballot shall be enclosed in a ballot envelope or ballot/return envelope, on which has been printed an oath prescribed by the State Board.