OAR 437-007-1000: General Requirements

(1) Trucks or rail cars must not be moved unless all personnel are in the clear. (2) When the operator’s vision is impaired, trucks or rail cars must not be moved without a signal from a spotter who has a clear view of the direction of travel. (3) Trucks must not approach a landing while there is danger from incoming logs, logging machines, lines, or rigging.