Maryland Health - General Section 21-325
§ 21-325.
  (a)   Each food establishment shall have:
    (1)   A convenient toilet that is:
      (i)   Except as provided in subsection (c) of this section, separated from any room in which food is manufactured, prepared, packed, canned, frozen, sold, or distributed;
      (ii)   Kept in a sanitary condition; and
      (iii)   Properly ventilated; and
    (2)   A convenient lavatory that is:
      (i)   Supplied with soap, water, towels, or other approved hand drying devices;
      (ii)   Kept in a sanitary condition; and
      (iii)   Properly ventilated.
  (b)   Each food service facility which prepares food and provides seating for patrons established after January 1, 1979 shall have available for the public:
    (1)   A convenient toilet that is kept in a sanitary condition; and
    (2)   A convenient lavatory that is:
      (i)   Supplied with soap, water, towels, or other approved hand drying devices;
      (ii)   Kept in a sanitary condition; and
      (iii)   Properly ventilated.
  (c)   A room that houses a toilet may be constructed within a larger room in which food is manufactured, prepared, packed, canned, frozen, sold, or distributed.