Maryland Code, Family Law § 5-707

(1) procedures for protecting the confidentiality of reports and records made in accordance with this subtitle;

(2) conditions under which information may be released;

(3) conditions for determining in cases whether abuse, neglect, or sexual abuse is indicated, ruled out, or unsubstantiated; and

(4) procedures for the appeal processes provided in this subtitle.

(b)(1) The local department shall expunge a report of suspected abuse or neglect and all assessments and investigative findings:

(2) If a report is ruled out, the local department may, on good cause shown, immediately expunge the report and all assessments and investigative findings.