I was just speaking to a guy from Hans trailers in bundaberg and he told me it is illegal to carry gas bottles or petrol in a jerry can on the side of the trailer in Qld. It supposedly has to go on the draw bar. That makes nearly every camper trailer illegal. If this is the case why do new manufacturers still do this if it is illegal? mmmmm makes me wonder!
They fit jerry can holders to trailers as the can be used to carry water. all fuels ie petrol gas and diesel can only be carried at the front of the trailer where it is deemed safe, apparently there is a grey area in regards to mounting gas bottles...This also goes for carrying fuel on the rear of your vehicle.
Having jerry cans isn't illegal its just what you put in them that can make it that way.