They range from a standard class 2, which is suitable for loads from 1,kg Included in trailer regulations throughout Australia is the need to. Box trailer Boat trailer Caravan Fifth wheel trailer Other. Make Is the coupling marked as complying with an Australian Standard? a UN/ECE standard? another . boat trailer. Before you travel on the roads in South Australia, you must make sure that you understand the legal and registration requirements and any. National Code of Practice – Building Small Trailers . Boat Trailer. .. The ADRs and Australian Standards referenced in this bulletin may be amended from . Building small trailers information for manufacturers and summarised construction requirements for trailers less than tonnes aggregate trailer mass. and air conditioning systems · Importing a trailer into Australia · Useful. International Etchells Class Association of Australia Inc. Trailers and Towing to Stay Legal. October And fitted to, Rear of boat, Rear of Mast, Rear of Mast. Also, the towing vehicle, trailer and its load must meet all legal and box, and boat trailers are this type. . trailers that do not exceed kg ATM must have at least one safety chain complying with Australian Standard. A trailer built specifically to carry a boat. Note: The Australian Design Rules are national standards determined by the Australian Government. Under VSB1 (the national standard applying to trailers), a trailer on the trailer, all of which need to be to Australian Standards specifications.