Maryland Code, Election Law § 13-332.1

(a) A candidate may not be issued a certificate of nomination under § 5-705 of this article if, on or before the deadline for declining the nomination specified under § 5-801(b) of this article, the candidate has failed to:

(b) Not later than 20 days before the deadline for declining the nomination specified under § 5-801(b) of this article, the State Board shall send a written notice to each candidate who was successful in the primary election and has failed to file a campaign finance report or an affidavit or pay a late filing fee or civil penalty under § 13-604.1 of this title that the candidate will be deemed to have declined the nomination if the candidate does not rectify the failure on or before the deadline for declining the nomination specified under § 5-801(b) of this article.

(c) A vacancy in nomination that occurs as a result of subsection (a) of this section shall be filled in accordance with Title 5, Subtitle 10 of this article.