The Harvest Mass Management Scheme (HMMS) provides growers and transporters with a level of flexibility at harvest by providing a practical way to manage over-loading of grain trucks.
HMMS was originally developed by the CBH Group and has now been adopted and is managed by Main Roads Western Australia (MRWA). Whilst the primary aim of the scheme is to ensure loading of trucks is within the standards legal limits, a tolerance is provided during harvest.
The Scheme provides an Extra Mass Tolerance (EMT) of up to 10% of the vehicle’s overall VRL (capped at 10 tonnes) from the start of October to the end of February each year. Within the
As part of the Scheme, all truck owners are required to register their vehicles before delivery. All vehicles are required by Main Roads WA to carry a copy of the Special Government Gazette and
Main Roads WA have provided an Exemption Notice to allow suitably equipped trucks and prime movers to exceed the statutory 6.0 tonne steer axle mass limit, provided it complies with the following conditions:
a) The vehicle is fitted with suitably rated tyres having a width dimension of at least that specified in c) below, together with complying rims; and
b) The vehicle has the capacity to carry the additional load without modifications, unless the modifications have been approved by the Director General of Transport; and
c) The single steer axle mass does not exceed:
It is important for growers and transport operators to read and understand the Exemption Notice, including when the exemption does and does not apply and providing evidence for conformance.
If growers and transport operators would like to register using the Exemption Notice and do not currently have FUPS, please update your details using the Truck Registration form and return it to CBH or update your registration through LoadNet®.
To participate in the Scheme, trucks must be registered with CBH.
To forfeit over-loaded grain, approval must be provided by growers. By approving
All forfeited grain is sold by CBH at the end of harvest and the profits are donated to charitable organisations.
You can pre-register forfeiture approval by filling out and returning the Forfeiture Approval Authority form. By using this form, any trucks that are over-loaded will automatically have the over-loaded tonnage amount forfeited without further approval.