The complainant shall, within a reasonable time following the filing of a complaint, serve all named respondents with a copy of the complaint in the manner of an original notice or by certified mail, return receipt requested, together with an agency-approved information sheet regarding mandatory electronic filing. Such service shall be upon the person(s) designated for service by 621-subrule 2.15(1), and the complainant shall file proof thereof with the agency in accordance with 621-subrule 2.15(3) and 621-subrule 16.10(1).
Iowa Admin. Code r. 621-3.4