Application information
Other HVS categories
Static roll threshold
There are currently 3 different static roll threshold (SRT) categories in the heavy vehicle specialist certification system:
- SRT Level 1
- SRT Level 2
- SRT Level 3
Courses and assessments are run by TERNZ and cover:
- background to the SRT and its inclusion in the dimension and mass rule
- performance standards for stability and relationships to crash risk
- derivation and validation of the SRT calculator
- use of basic features
- advanced topics in load distribution and positioning
- advanced topics in suspension performance and input requirements
- the Transport Agency Vehicle inspection requirements manual: Heavy vehicle specialist certification.
For those wishing to qualify as a Transport Agency-approved inspector there will be 2 tests – a basic test covering the requirements to be a level 1 inspector and an advanced test covering the requirements to be a level 2 inspector.
Application and appointment
If the application is filled in correctly and we are satisfied with the information provided (you must provide verifying documents) you will be sent an acceptance letter for your application and a Notice of appointment.
If your application is not accepted you will receive a letter stating the reason(s) why.
Once you indicate your acceptance of the appointment to the Transport Agency we will allocate you an ID if you are not a current inspector and give you instructions on how to order LT400s.
Swept path and vehicle dynamics
These categories are restricted to inspectors who already hold the chassis modification category.
Swept path
To be appointed to this category requires the inspector to confirm that they have the appropriate computer software or the facility to physically test vehicles to meet the requirements of the Vehicle Dimension and Mass Rule. Swept path analyses are also required to support some exemption requests. The provisions of the Rule which provide swept-path based exemptions and the performance measures applying to each provision are summarised in the VIRM: HVSC, 7-4 swept path requirements.
Vehicle dynamics
To be appointed to this category requires the inspector to confirm that they have the appropriate computer software or the facility to physically test vehicles to meet the performance based standard (PBS) requirement of the high productivity motor vehicle (HPMV) section of the Vehicle Dimension and Mass Rule. Prospective inspectors must pass an assessment set by the Transport Agency prior to being appointed. The provisions of the Rule which provide swept-path based exemptions and the performance measures applying to each provision are summarised in the VIRM: HVSC, 7-4 swept path requirements.