Accredited Mass Management Scheme (AMMS)

AMMS is a concessional loading scheme, similar to the schemes it replaced, i.e. the Certified Weighbridge Mass Management Scheme (CWMMS) and the Concessional Loading Bulk Products Scheme (CLBPS). AMMS has been developed in conjunction with the Ministerial Heavy Vehicle Advisory Panel to provide:

  • a more flexible concessional loading scheme that allows more transport operators access to concessional mass limits, provided they have suitable loading controls in place;
  • benefits to road assets owners, as it results in more transport operators controlling their loading, which reduces potential for overloading;
  • clear publication of approved concessional networks, reducing the risk of transport operators travelling on non-approved routes; and
  • greater assurance to road asset owners that vehicles are being loaded within the allowable limits, improving road infrastructure protection and sustainability, through transport operators being regularly audited.

AMMS allows for three (3) concessional mass levels and does not prescribe the specific loading control methods that must be used or restrict commodity types, which was the case with previous schemes. Rather, it allows for any product and any proven loading control method to be used.

To be eligible for AMMS, operators must be accredited under the WA Heavy Vehicle Accreditation (WAHVA) Mass Management Module and for more information on the accreditation requirements, please refer to the Accreditation Page.

For more information about the scheme, please see the documents below:

 
AMMS Approved Weighbridge List

An operator of a certified weighbridge used by multiple transport operators may apply to have their weighbridge included on the AMMS Approved Weighbridge List.

For a weighbridge to be approved on the AMMS Approved Weighbridge List it must be able to determine and record both:

  • the gross mass of the vehicle; and
  • individual axle group weights.

This allows a transport operator using an approved weighbridge as their sole loading control method to simply refer to the approved weighbridge when addressing the criteria for the relevant Standard in the Mass Management Module.

To apply the Weighbridge Application Form must be submitted, which includes a declaration stating the weighbridge can determine and record the vehicle's gross mass and load distribution across axle groups. The weighbridge operator must also provide Main Roads with current certification or calibration documentation with their application form.

 

Application Process

Once a transport operator is accredited under the WAHVA Mass Management Module, to apply for an AMMS permit they are required to complete the AMMS Application Form, which includes a declaration stating they have appropriate loading control methods in place to ensure compliance with the allowable mass limits of the scheme.

 

AMMS Level 1-A - Transitional 3 Month Permit - Eligibility & Application Process.

As of 1 July 2017, Main Roads introduced a three (3) month transitional AMMS Level 1-A permit.

This permit has been introduced to assist a small number of transport operators, who are yet to transition across to AMMS, by providing additional time to meet the requirements of the Mass Management Module and undergo a Mass Management Module audit to become fully accredited and be eligible for a standard AMMS Permit.  

Eligible operators have been contacted directly by Main Roads to outline the process to transition to an AMMS Level 1-A permit. If you believe you are eligible and have not been contacted by Main Roads, please call our Heavy Vehicle Helpdesk on 138 486 to discuss your eligibility status.

For more information, please see the documents below.

 

Concessional Networks

​Level 1 ​

Concessional Road Networks​: Vehicle combination must comply with all relevant conditions that apply to the equivalent vehicle combination under the relevant Operating Conditions , unless otherwise exempt by this permit (ie: Mass limits).

​Axle Group​Tonnes

Tandem vehicle combinations operating on Level 1 must only operate on the relevant RAV Network that is permitted for the equivalent vehicle combination under the Prime Mover, Trailer or Truck, Trailer Combinations.

Note: A Category 1 vehicle combination may operate on Network 1 under Level 1 AMMS, provided the gross mass does not exceed 50 tonnes.

Tri-drive vehicle combinations operating on Level 1 must only operate on the relevant Tri-drive Network that is permitted for the equivalent vehicle combination under the Tri-drive Prime Mover, Trailer or  Tri-drive Truck, Trailer Combinations.

​Single Steer​6.0
​Twin Steer11.0 ​Load Sharing
10.0 ​Non Load Sharing
​Tandem axle (dual tyres)​17.0
​Tri-axle (dual tyres)​21.5

 Note:  Single steer axle mass exemptions may be used in conjunction with an AMMS permit.

 

​Level 2 ​
(Road Tables below)

Concessional Road Networks:Vehicle combination must comply with all relevant conditions that apply to the equivalent vehicle combination under the Prime Mover, Trailer / Truck Trailer Combination Operating Conditions , unless otherwise exempt by this permit (ie: Mass limits). ​

​Axle Group​Tonnes
​Single Steer​6.0
​Twin Steer11.0 Load Sharing​
​10.0 Non Load Sharing
​Tandem axle (dual tyres)​17.0
​Tri-axle (dual tyres)​22.5

 Note: Single steer axle mass exemptions may be used in conjunction with an AMMS permit.

 
Level ​ ​ 3
(Road Tables below)

Concessional Road Networks: Vehicle combination must comply with all relevant conditions that apply to the equivalent vehicle combination under the Prime Mover, Trailer / Truck Trailer Combination Operating Conditions, unless otherwise exempt by this permit (ie Mass Limits).

 

​Axle Group​Tonnes ​
​Single Steer​ ​6.0
​Twin Steer​ ​11.0 Load Sharing
​10.0 Non Load Sharing
​Tandem axle (dual tyres)​ ​17.5
​Tri-axle (dual tyres)​ ​23.5

 Note: Single steer axle mass exemptions may be used in conjunction with an AMMS permit.

 

Tandem Drive Network (Road Tables and Vehicle Categories)

Note: Heavy Vehicle Services – Main Roads Western Australia (HVS), as part of any HVS route assessment for a Restricted Access Vehicle (RAV), does not assess any access driveway adjoining a RAV network road.  It remains the responsibility of the property owner to ensure safe ingress and egress to the property.

 

​Category
​Vehicle Description and Configuration
​Axle Spacing
Table
​Tandem Drive Concessional Network Level 2
Tandem Drive Concessional Network Level 3
​2Image: Category 2 Vehicle Combinations.JPG​A

​N2.2 (Road Name Order)

 

N2.2 (LGA Order)

 

 

 

​N2.3 (Road Name Order)

 

N2.3 (LGA Order)

 

 

 

​3Image: Category 3 Tandem Drive Concessional Network Level 2.PNG​A

​N3.2 (Road Name Order)

 

N3.2 (LGA Order)

 

 

​N3.3 (Road Name Order)

 

N3.3 (LGA Order)

 

 

​4Image: Category 4 Tandem Drive Concessional Network Level 2.PNG​A

N4.2​ (Road Name Order)

 

N4.2 (LGA Order)

 

 

 

​N4.3 (Road Name Order)

 

N4.3 (LGA Order)

 

 

 

​5Image: Category 5 Tandem Drive Concessional Network Level 2.PNG​A

​N5.2 (Road Name Order)

 

N5.2 (LGA Order)

 

 

​N5.3 (Road Name Order)

 

N5.3 (LGA Order)

 

 

​6Image: Category 6 Concessional Network Tandem Drive Level 2 & 3.PNG​A

​N6.2 (Road Name Order)

 

N6.2 (LGA Order)

 

 

​N6.3 (Road Name Order)

 

N6.3 (LGA Order)

 

 

7​Image: Category 7 Tandem Drive Concessional Network Level 2 & 3.PNG​A

​N7.2 (Road Name Order)

 

N7.2 (LGA Order)

 

 

N7.3 (Road Name Order)

 

N7.3 (LGA Order)

 

 

9​Image: Category 9 Tandem Drive Concessional Network Level 2 & 3.PNG​A

​N9.2 (Road Name Order)

 

N9.2 (LGA Order)

 

 

N9.3 (Road Name Order)

 

N9.3 (LGA Order)

 

 

10​Image: Category 10 Tandem Drive Concessional Approved Combinations.JPG​A

​N10.2 (Road Name Order)

 

N10.2 (LGA Order)

 

 

​N10.3 (Road Name Order)

 

N10.3 (LGA Order)

 

 

 

 Tri Drive Networks (Road Tables and Vehicle Categories)

Note: Heavy Vehicle Services – Main Roads Western Australia (HVS), as part of any HVS route assessment for a Restricted Access Vehicle (RAV), does not assess any access driveway adjoining a RAV network road.  It remains the responsibility of the property owner to ensure safe ingress and egress to the property.

 

​Category
​Vehicle Description and Configuration
​Axle Spacing
Table
​Tri Drive Concessional Network Level 2
​Tri Drive Concessional Network Level 3
​1Image: Category 1 Tri Drive Concessional Network Level 2 & 3.PNG​A

​Operates on N2.2 (Road Name Order)

 

Operates on N2.2 (LGA Order)

 

 

Operates on N2.3 (Road Name Order)

 

Operates on N2.3 (LGA Order)

 

 

​2Image: Category 2 Tri Drive Concessional Network Level 2 & 3.PNG​A

​TD2.2 (Road Name Order)

 

TD2.2 (LGA Order)

 

 

​TD2.3 (Road Name Order)

 

TD2.3 (LGA Order)

 

 

​3Image: Category 3 Tri Drive Concessional Network Level 2 & 3.PNG​A

​TD3.2 (Road Name Order)

 

TD3.2 (LGA Order)

 

 

​TD3.3 (Road Name Order)

 

TD3.3 (LGA Order)

 

 

​4Image: TD4.3 36.5m Approved Combinations.JPG​A

TD4.2 (Road Name Order)

 

TD4.2 (LGA Order)

 

 

​TD4.3 (Road Name Order)

 

TD4.3 (LGA Order)

 

 

​5Image: Category 5 Tri Drive Concessional Network Level 2 & 3.PNG​A

​TD5.2 (Road Name Order)

 

TD5.2 (LGA Order)

 

 

​TD5.3 (Road Name Order)

 

TD5.3 (LGA Order)

 

 

 

 

 

 

Modified: 07 Aug 2017