Totaled vehicle is defined in ORS 801.527.
If your vehicle is a total loss, you must submit the title to DMV (or to your insurer) within 30 days of the declared loss. You can apply for a salvage title if you do not plan to drive the vehicle and if it has not been declared junk, scrap, or similar language (See Junk Vehicles, on this page). If the vehicle is rebuilt, you can apply for a regular title branded as assembled, reconstructed, or replica. Even if no repairs are done, the vehicle must be re-titled due to the totaled status.
You can get more information on the Division of Financial Regulation website.
DMV cannot issue a title if your vehicle has certain kinds of damage (see the Junk Vehicles section on this page).