Maryland Code, Tax-Property § 8-407

(a)(1) Except as provided in paragraph (2) of this subsection, if an appeal is filed under § 8-404 of this subtitle or if a petition for review is filed, the supervisor shall give written notice of the final value or classification determined by the supervisor to the person who has appealed or filed a petition for review.

(2) For a dwelling as defined in § 9-105 of this article, the supervisor shall give written notice no later than 60 days after the hearing under § 8-405 of this subtitle.