Md. Code, Election Law § 9–403

(a) The State Board shall establish guidelines for the administration of provisional ballot voting by the local boards.

(b) The guidelines shall provide for:

(1) the provisional ballot application process;

(2) ballot security, including storage of returned ballots;

(3) the canvass process;

(4) notice of the canvass to candidates, political parties, campaign organizations, news media, and the general public;

(5) observers of the process;

(6) review of ballots and envelopes submitted for compliance with the law and for machine tabulation acceptability;

(7) standards for disallowance of ballots during the canvass;

(8) storage and retention of ballots following canvass and certification; and

(9) the free access system required under § 11-303(f) of this article.

(c) The State Board shall:

(1) in consultation with the local boards, assess the guidelines before each primary election; and

(2) revise the guidelines if indicated.