I have never heard of a legality on that nor could I see any reason for one.
Neil & Lynne
Pinjarra
Western Australia
MY23.5 Ford Wildtrak V6 Dual Cab / 22 Silverline 22.68.5
600w Solar: 210ah Lithium Battery: 3000w Projecta Inverter
Diesel Heater: SOG Toilet Kit: : Enviro Water Saver: Starlink Mini