The testing, protocols and safety requirements of vehicles and their components at both CoF and roadside inspection are the same, but it's important to note that the testing environment is different. Vehicles must be safe for both environments.
In the testing station a vehicle undergoes its inspection in a controlled environment where, for example, the load for brake testing is pre-determined and known. On the road, the vehicle may have a different load for each trip and can fail a roadside brake test if the brakes are not working effectively with the particular load being carried. Other factors can also influence the outcome of roadside testing, including the environment (eg if it's wet, hot or dusty) and nature of previous work (eg, city or long haul). A well-serviced vehicle will continue to pass in all environments.
The Transport Agency has developed two brake test information sheets that may assist you and/or your service provider in maintaining your vehicle's brakes.
Read How to reduce the occurrences of brake failure during roller brake testing [PDF, 672 KB]
Find out about the differences between brake test environments and how these may impact on a brake test result [PDF, 1.1 MB]
I’m renting a heavy vehicle, but the vehicle’s owner is managing the maintenance and servicing of the vehicle. Whose TSL should be used for events relating to this vehicle?
As the operator using this vehicle on a day-to-day basis, ultimately you are responsible for maintenance of the vehicle, regardless of whether it is rented or not. The onus is on you, the operator, to make sure the vehicle is roadworthy at all times. Because of this, your TSL should be used for events relating to this vehicle. This also ensures the number of vehicle kilometres travelled can be attributed to your TSL, so weights of events against your TSL can be correctly calculated.