Maryland Code, Financial Institutions § 3-802

(a) Any commercial bank may convert into a national banking association as provided by federal law.

(b) When a commercial bank applies to the Comptroller of the Currency for conversion into a national banking association, it shall file with the Commissioner a written notice of its intent to convert.

(c) When the Comptroller of the Currency issues a certificate of authority to do business as a national banking association, the charter of the commercial bank terminates and the new national banking association shall:

(d) The Commissioner shall file a copy of the certificate of authority with the State Department of Assessments and Taxation.