(a) All actions taken by the central tidal wetland permit administrator or commissioner denying a petition, or granting, suspending or revoking a moratorium permit shall be in writing and shall be accompanied by a written statement of his findings and the reasons for all such actions taken, and shall be sent by registered mail to the parties in interest and to the chief administrative officer of each municipality within whose boundaries the affected tidal wetlands or portion thereof is located; provided, however, in the case of an uncontested petition for which no hearing has been held the requirement for a written statement shall be satisfied, if the petition is granted, by the issuance of a moratorium permit.

(b) The official record of the proceedings on the petition for a moratorium permit will be available for inspection by any person in the appropriate regional office of the department.