Md. Code, Land Use § 25–212

In Prince George’s County, a person may make a request to the district council for the review of a decision of the zoning hearing examiner or the county planning board only if:

(1) the person is an aggrieved person that appeared at the hearing before the zoning hearing examiner or county planning board in person, by an attorney, or in writing; and

(2) the review is expressly authorized under this division.