Maryland Environment Section 9-507

      (a)      When a county governing body submits its proposed county plan or a proposed revision or amendment of its county plan to the Department, the Department may:

            (1)      Approve the proposal;

            (2)      Disapprove the proposal;

            (3)      If the part approved includes all of the required elements of a county plan, approve the proposal in part and disapprove it in part; or

            (4)      Modify or take other appropriate action on the proposal.

      (b)      Before the Department approves or disapproves, in whole or in part, a proposed county plan or a proposed revision or amendment of a county plan, the Department shall submit the proposal:

            (1)      To the Department of Natural Resources for advice on natural resources matters;

            (2)      To the Department of Planning for advice on the consistency of the proposal with the local master plan and other appropriate matters; and

            (3)      To the Department of Agriculture for advice on the impact of water and sewerage service and solid waste facilities on productive or potentially productive agricultural land.

      (c)      (1)      Except as otherwise provided in this subsection, the Department shall approve, disapprove, or partially approve and partially disapprove each proposed county plan or proposed revision or amendment to a county plan within 90 days after the proposal is submitted to the Department.

            (2)      For good cause and after notice to the county involved, the Department may extend the 90-day review period of paragraph (1) of this subsection for an additional 90 days.

      (d)      If the Department does not disapprove, in whole or in part, a proposed county plan or a proposed revision or amendment of a county plan within the review period provided in subsection (c) of this section, the proposal is approved.

      (e)      (1)      Before the Department takes any action under subsection (a) of this section, a county may use its proposed county plan or proposed revision or amendment of its county plan at the county's own risk, if the county governing body has adopted the proposed county plan, revision, or amendment.

            (2)      After the county governing body adopts the proposed county plan, a person shall follow the provisions of that plan except to the extent that the Department modifies or disapproves that plan.