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 / 21' Silverline 21-65.3
' 1260w Solar: 400ah Lithium Battery: 2000w Projecta IP2000 Inverter
Diesel Heater: SOG Toilet Kit: 2.5kw Fujitsu Split System A/c