OAR 734-074-0040: Operating Days and Hours, Prohibitions

(1) Vehicles and combinations of vehicles, except triple trailers, may operate on a 24-hour, seven-day week basis. (2) Triple trailers may operate on a 24-hour, seven-day week basis on authorized routes unless traveling on a highway which prohibits such movement on holidays or weekends. The holidays include New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day: (a) When a triple trailer route prohibits movement on weekends, movement is prohibited from 5 p.m. Friday until 10 p.m. Sunday; and (b) When a triple trailer route prohibits movement on holidays, movement is prohibited during all hours: (A) Triple trailer movement on any route that has holiday or weekend restriction is prohibited from noon on the Wednesday preceding Thanksgiving Day until sunrise on Monday following Thanksgiving Day; (B) Triple trailer movement on any route that has holiday or weekend restriction is prohibited between 4 p.m. Thursday and sunrise Monday, when the State observes any of the specified holidays on a Friday; (C) Triple trailer movement on any route that has holiday or weekend restriction is prohibited between 4 p.m. Friday and sunrise Tuesday, when the State observes one of the specified holidays on a Monday; (D) Triple trailer movement on any route that has a holiday or weekend restriction is prohibited when a holiday falls on any other day of the week between 4 p.m. on the day preceding the holiday until 12:01 a.m. on the day following the holiday unless it is otherwise restricted.