Factsheet 13e — February 2005

Level 2 assessment

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The Level 2 assessment requires more detailed data about the vehicle's mechanical characteristics, such as the actual stiffness values of the suspension, and load characteristics.

This should give a more accurate assessment of the trailer's SRT, which could mean that a reduction of mass or load height is less likely.

A Level 2 assessment is also needed when the load's centre of gravity cannot easily be assessed (eg, for irregular or complex shaped hoppers or body shapes of irregular cross section). Non-uniform loads, such as construction machinery and equipment, will need Level 2 certification if they have not been certified as uniform density under Level 1. In these cases, a Level 2 SRT Certifying Engineer must assess the vehicle.

Trailer meets requirement

If your trailer, at maximum potential load mass and height, meets or exceeds the 0.35 g SRT requirement, an SRT certificate will be issued. (The Certificate of Loading will be endorsed with the maximum load and height values.)

Trailer doesn't meet requirement

If your trailer doesn't meet the 0.35 g SRT requirement, a reduced mass/reduced height certificate will be issued. This will specify the reduced gross mass or reduced load height that you can operate the trailer with to meet the 0.35 g SRT. (It may also include a table of allowable gross mass/load height combinations.) The Certificate of Loading will be endorsed with these maximum load and height values.

If your trailer doesn't meet the required 0.35 g SRT, you may wish to have it modified so it does. Talk to your engineer about the best options.
Read a list of workshops that modify trailers.