Maryland Natural Resources Section 4-11A-10

      (a)      Immediately upon entering into a lease, every lessee shall designate leased oyster bottoms by plainly marking them as specified by regulations issued by the Department in consultation with the Tidal Fisheries Advisory Committee and Aquaculture Coordinating Council. The initials of the lessee shall be marked on at least four markers. The lessee shall exercise reasonable diligence in maintaining markers but the temporary loss or destruction of any markers shall not operate to permit any unauthorized person to trespass on or remove, destroy, or disturb oysters on any areas.

      (b)      If any leased oyster bed does not have markers at the 4 corners of the bed, a person, including the lessee, may not catch oysters from the bed. If the markers are not in order on any leased oyster bed, the Natural Resources Police have a duty not to allow a person to operate or catch oysters in the bed until the corner markers are replaced.