Md. Rule 18-501
Rule 18-501. Scope of Chapter
The Rules in this Chapter apply to:
(a) judges of the District Court, judges of a circuit court, judges of the Appellate Court, and justices of the Supreme Court; and
(b) senior judges.
Cross reference: See Code, Family Law Article, § 2-406, which also contains a list of other officials authorized to perform marriage ceremonies.