Maryland Health - General Section 24-502

      (a)      The provisions of this subtitle do not apply to:

            (1)      A restaurant;

            (2)      A restaurant area of a retail store;

            (3)      A tobacconist;

            (4)      A lavatory or restroom in a retail store; or

            (5)      A work area of a retail store:

                  (i)      To which the public does not have access; and

                  (ii)      That can be physically isolated by a room with doors closed.

      (b)      Except as provided in this subtitle, an individual or employee may not smoke in the public area of a retail store in this State.