Any sign that is posted on a highway in this state that expresses a speed limit in kilometers per hour shall also show the speed limit in miles per hour. The limit in miles per hour shall be printed above the limit in kilometers per hour and shall be of equal size lettering.
ORS 810.212
1993 c.284 §2
Official source: Oregon State Legislature. Reproduced from public-domain Oregon statutes; confirm against the official source for the current text. Not legal advice.