Md. Code, Election Law § 9–302

Each local board shall maintain a full record of absentee voting in the county, including, for each absentee voter:

(1) the date and time of the board’s receipt of an application for an absentee ballot;

(2) the action taken with regard to the application;

(3) the appropriate ballot style;

(4) the date of issuance of a ballot;

(5) if mailed, the address to which the ballot is sent;

(6) the date and time of the receipt of a voted absentee ballot; and

(7) any other information specified by the State Board.