Maryland Code, Land Use § 22-208

(a) Before a map amendment is approved, it shall be submitted to the appropriate county planning board and to the governing body of the municipal corporation or governed special taxing district where the land is located for a recommendation as to approval, disapproval, or approval with conditions.

(b) A district council may provide by local law procedures for the county planning board and a municipal corporation or governed special taxing district to follow in considering zoning map amendments to the extent that these provisions do not conflict with this division.