If you are asking do I need brakes on a trailer Tasmania rules, the law is very clear and is consistent with the Australian Design Rules (ADR). Any trailer with a Gross Trailer Mass (GTM) over 750kg must be fitted with an efficient braking system.
- Under 750kg GTM: No brakes required. This covers most standard 6×4 and 7×5 single-axle box trailers used for light household duties.
- 750kg to 2,000kg GTM: You must have brakes on at least one axle. Over-run (mechanical) brakes are the most common here—the trailer’s own weight pushes a lever when you slow down, engaging the trailer brakes.
- Over 2,000kg GTM: You are required to have brakes on all axles, and they must be operable from the driver’s seat (usually electric brakes with a “break-away” system).
Safety is paramount on our winding roads. If you’re regularly hitting the limit of a 750kg trailer, upgrading to a braked model is a massive safety boost for you and everyone else on the road.
