§ 15.737-13 Service of complaint and other papers.
(a) Complaint. The complaint or a copy thereof may be served upon the respondent by certified mail, or first-class mail as hereinafter provided; by delivering it to the respondent or his/her attorney or agent of record either in person or by leaving it at the office or place of business of the respondent, attorney or agent; or in any other manner which has been agreed to by the respondent. Where the service is by certified mail, the return post office receipt duly signed by or on behalf of the respondent shall be proof of service. If the certified mail is not claimed or accepted by the respondent and is returned undelivered, complete service may be made upon the respondent by mailing the complaint to him/her by first-class mail, addressed to him/her at the last address known to the Director. If service is made upon the respondent or his/her attorney or agent of record in person or by leaving the complaint at the office or place of business of the respondent, attorney or agent, the verified return by the person making service, setting forth the manner of service, shall be proof of such service.