Accredited Mass Management Scheme (AMMS)

The Accredited Mass Management Scheme (AMMS) was introduced into WA in 2016 and allows for 3 tiers of higher mass limits for transport operators who have appropriate loading control methods.

Unlike the CWMMS, the loading control methods are not prescribed by Main Roads WA, rather it allows for any proven accurate and consistent loading control method.

To be eligible for the scheme, a transport operator must be accredited and apply with Main Roads WA, while undertaking regular auditing to provide assurance under the scheme.

Bunge can accept deliveries under the Accredited Mass Management Scheme, and will ensure that any vehicle out turning from one of its sites, is loading to the correct control method outlined in their Load Plan.
Note: No transport operator can outturn grain from a Bunge site under AMMS, without providing a copy of their Load Plan.

Due to the higher mass limits associated with the Accredited Mass Management Scheme (AMMS), Bunge will take a stronger approach to management of vehicles that are overloaded. Therefore it is expected that any vehicle delivering to a Bunge site under AMMS, will have read the Bunge Overloading Policy and understands the penalties associated with a breach.


It is the duty of care as the transport operator to ensure that all vehicles delivering to a Bunge site are aware of the AMMS tier and RAV Network that a vehicle may use to deliver.
Bunge, under its Chain of Responsibility, will ensure that a vehicle leaving its site is loaded to its correct mass limit for the journey it will undertake.

For further information on the Accredited Mass Management Scheme (AMMS) please contact WA Logistics or visit the Main Roads WA website.