R.I. Gen. Laws § 28-41-28
The board of review and all parties to the proceedings before it shall be parties to the review proceedings. If the director is a party respondent, the petition shall be served by leaving with him or her, or any representative whom he or she designates for that purpose, as many copies of the petition as there are respondents. Within ten (10) days after filing of the petition, an affidavit of compliance shall be filed with the superior court in which the petition has been filed. The director shall file with the court certified copies of the record of the case together with his or her petition for review or his or her answer to the appellant's petition. Upon the filing of a petition for review by the director, or upon service of a petition upon him or her, the director shall send a copy of the petition by registered or certified mail to each party and that mailing shall constitute service upon the parties.
R.I. Gen. Laws § 28-41-28