Western Australian Current Regulations Western Australian Current Regulations (1) If an agricultural
combination exceeds 4.3 m in height or may come into contact with an
electricity supply line while being used on a road it must not be used on that
road unless written permission has been obtained from each relevant body
established by the Electricity Corporations Act 2005 section 4(1).
(2) A written
permission may be made subject to compliance with specified requirements
including a requirement that the combination be escorted by a police officer
while being used.
(3) A written
permission has effect for 12 months from the day it is obtained.