Every final decision, order, or regulation of the Commission is prima facie correct and shall be affirmed unless clearly shown to be: (1) unconstitutional; (2) outside the statutory authority or jurisdiction of the Commission; (3) made on unlawful procedure; (4) arbitrary or capricious; (5) affected by other error of law; or (6) if the subject of review is an order entered in a contested proceeding after a hearing, unsupported by substantial evidence on the record considered as a whole.
Maryland Legal Code