Md. Code, Election Law § 8–711

(a) At least 55 days before the special primary election, the State Board shall certify to the appropriate local boards the name, residence, and party affiliation of each candidate who qualifies to appear on the special primary election ballot.

(b) At least 55 days before the special general election, the State Board shall certify to the appropriate local boards the name, residence, and party affiliation of each nominee who qualifies to appear on the special general election ballot.