OAR 734-074-0060: “Long Load” Warning Signs for Triple Trailer Combinations

(1) A warning sign for triple trailer combinations bearing the legend “LONG LOAD” is to be displayed on the back of the rearmost trailer or semitrailer. (2) The sign must be positioned at such height as to be readily visible to following drivers and: (a) Signs must be seven feet wide by 18 inches high with black letters 10 inches high in accordance with Federal Highway Administration series C on highway yellow background; (b) The highway yellow background of the sign must be made of reflectorized material when operating between one half hour after sunset and one half hour before sunrise; (c) Signs must be kept clean, legible and mounted horizontally with adequate support to provide full visibility at all times when in use; and (d) All such signs must be removed or retracted when not required. (3) Combinations of vehicles described in OAR Chapter 734, Division 73 do not require warning signs.