Notice of denial or other notice from which statutory time runs against a claimant shall be in writing and shall be delivered by registered or certified mail with return receipt requested or by personal service meeting the requirements for service of a summons.
Or. Admin. Code § 438-005-0065
Stat. Auth.: ORS 656.307, ORS 656.388, ORS 656.543 & ORS 656.726(4)
Stats. Implemented: ORS 656.262(6)