When sign abandoned; removal. Any sign that does not have a message on the display surface for a period of six months is deemed to have been abandoned by the owner and is a noncomplying sign subject to removal by the Director of Transportation under the procedure set forth in ORS 377.775. [1974 c.33 §7; 1975 c.336 §11; 1993 c.741 §60; 2007 c.199 §17]

ORS 377.773 — under Chapter 377.