Oregon Revised Statutes Procedure in Criminal Matters Generally § 133.717

(1) Is incarcerated for any offense in a Department of Corrections institution, the notice must be sent by regular United States mail in an envelope prominently displaying the words “Legal Mail.”

(2) Is supervised by a supervisory authority for any offense, the notice must be sent by regular United States mail to the defendant's last-known address on record with the supervisory authority.

(3) Is no longer supervised by a supervisory authority, the notice must be sent by certified mail to the defendant's last-known address.