Maryland Code, Land Use § 22-207

(a) Before a district council may amend the zoning law by changing the zoning classification of property in a municipal corporation or governed special taxing district, the district council shall refer the application for the change to the governing body of the municipal corporation or governed district for its recommendation.

(b) The governing body of the municipal corporation or governed special taxing district has 60 days to make its recommendation.

(c) A two-thirds majority of all the members of the district council is required before the district council may change the zoning classification of property in a municipal corporation or governed special taxing district contrary to the recommendation of the municipal corporation or governed district.