Iowa Admin. Code r. 876-4.13
Except as provided in rules 876-4.6 (85,86,17A) and 876-4.7(86,17A), service of all documents and papers to be served according to this chapter or otherwise upon a party represented by an attorney shall be made upon the attorney unless service upon the party is ordered by the workers' compensation commissioner or deputy workers' compensation commissioner. Service upon the attorney or party shall be made using WCES once a party or party's attorney has registered in WCES for the claim being contested. If a party has been granted a waiver of the mandatory use of WCES or if a party or attorney has not appeared in WCES, service upon the attorney or party shall be made by delivery of a copy or mailing a copy to the last-known address of the attorney or party or, if no address is known, by filing a copy with the division of workers' compensation. Delivery of a copy within this rule means handing it to the attorney or party; leaving it at the office of the attorney or party's office or with the person in charge of the office; or if there is no one in charge of the office, leaving it in a conspicuous place in the office; or if the office is closed or the person to be served has no office, leaving it at the person's dwelling house, or usual place of abode with some person of suitable age and discretion who is residing at the dwelling or abode. Service by mail under this rule is complete upon mailing. Documents that are served on a party for discovery and medical evidence under rules 876-4.14 (86) and 876-4.18(17A,85,86) shall not be filed with the division of workers' compensation. No documents or papers referred to in this rule shall be served by the workers' compensation commissioner.
This rule is intended to implement Iowa Code sections 17A.12 and 86.18.
Iowa Admin. Code r. 876-4.13