The Administration or the Office shall provide notice of a hearing pursuant to State Government Article, §10-209, Annotated Code of Maryland. Notices, decisions, orders, and other documents issued by the Administration or the Office may be served on a person by: Personal delivery to the person; Mailing a copy of the document, first class, postage prepaid, to the person's address of record on file with the Administration; Mailing a copy of the document, first class, postage prepaid, to the person's last known address if different from the person's address of record on file with the Administration; Mailing a copy of the document by certified mail to the person's address of record on file with the Administration or last known address; or Delivering or mailing a copy of the document, first class, postage prepaid, to the person's attorney, if the person is represented by counsel. Notice of a hearing is sufficient: If the initial notice of a hearing is sent by regular mail to a party at the party's business and resident addresses on file with the Commissioner in accordance with Insurance Article, §§10-111(a)(4) and 10-117, Annotated Code of Maryland; and Upon a satisfactory showing that the notice was sent not less than 30 calendar days before the hearing, unless a different time period is required by law. A record shall be maintained stating: To whom the initial notice was sent; The address to which the initial notice was sent; The date the initial notice was sent; The manner of service; and The name of the person who sent the initial notice.