Services

Vehicle Assessment Signatory Scheme (VASS) Certifications​

ModiCert provides VASS certification (Blue Plate) for heavy vehicle modifications, ensuring compliance with related regulations.​

VASS Signatory Services

VASS Certificate-Suspensions

VSB6 Codes F1, F2

Inspect and certify the fitting of modified or alternative suspensions to heavy vehicles. The listed price reflects the base cost for standard services. Final pricing may vary based on location and modification complexity. #VSB6 #VASS

VASS Certificate-Brakes

VSB6 Codes G1, G2, G3, G6, G7, G8

Inspect and certify the modifications of heavy vehicle brake systems, including requirements for modifications such as the relocation of components and controls. The listed price reflects the base cost for standard services. Final pricing may vary based on location and modification complexity. #VSB6 #VASS

VASS Certificate-Chassis

VSB6 Codes H1, H2, H3, H4, H5

Inspect and certify the modification of heavy vehicle chassis. The listed price reflects the base cost for standard services. Final pricing may vary based on location and modification complexity. #VSB6 #VASS

VASS Certificate-Body Mounting

VSB6 Code J1, J4

Inspect and certify the design and installation of bodies onto vehicle chassis. The listed price reflects the base cost for standard services. Final pricing may vary based on location and modification complexity. #VSB6 #VASS

VASS Certificate-Tow Couplings

VSB6 Codes P1, P2

Inspect and certify the fitting of tow couplings to heavy vehicles. The listed price reflects the base cost for standard services. Final pricing may vary based on location and modification complexity.

VASS Certificate-Vehicle Rating

VSB6 Codes S1, S2, S3, S7, S8, S9, S11, S12

Inspect and certify:
• motor vehicles for use in B-double configurations
• motor vehicles for use in road train configurations
• trailers for use in road train configurations
• mass rating changes to motor vehicles or trailers
• mass rating changes to motor vehicles or trailers required as a
result of modifications that affect their carrying capacity (gross
vehicle mass / aggregate trailer mass, gross trailer mass) or
hauling/towing capacity (gross combination mass). The listed price reflects the base cost for standard services. Final pricing may vary based on location and modification complexity. #VSB6 #VASS

Engineering Services

Chartered Engineer Consultancy

CHE-01

Expert technical assessment, and compliance certification for projects across industries. Led by Eiman, a certified Chartered Engineer, this service offers detailed reports, project valuations, and approval documents required for regulatory, export, and legal purposes.

Vehicle ADR & Regulatory Compliance assessment/Certificate

CHE-02

The listed price reflects the base cost per vehicle. Final pricing may vary based on location and modification complexity.

Sign off by a Chartered engineer

CHE-03

The listed price reflects the base cost per project. Final pricing may vary based on location and modification complexity.

Design, FEA and calculation Services

Drawbar Finite Element Analysis (FEA) - Compliant certificate to ADR 62

FEA-01

Static and Dynamic simulation + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Towbar Finite Element Analysis (FEA) - Compliant certificate to ADR62

FEA-02

Static and Dynamic simulation + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Chassis Finite Element Analysis (FEA)

FEA-03

FEA Report + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Truck body/Tray Finite Element Analysis (FEA)

FEA-04

FEA Report + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Towbar Finite Element Analysis (FEA) - Compliant certificate to ADR62

FEA-05

FEA Report + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Chassis Finite Element Analysis (FEA)

FEA-06

FEA Report + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Finite Element Analysis (FEA) Services

FEA-07

FEA Report + Report signed by Chartered Engineer – (3D model not included) – Final pricing may vary based on project complexity.

Engineering Design - 3D modeling and drawing

FEA-08

Final pricing may vary based on project complexity.

Why Certify Heavy Vehicle Modifications?

Certifying heavy vehicle modifications is crucial to ensure any changes meet stringent safety and legal standards, especially for heavy vehicle modification services in Victoria. Modifications such as truck chassis extensions, suspension upgrades for heavy vehicles, or GVM upgrades can significantly impact roadworthiness and compliance. Certification guarantees these specialised heavy vehicle alterations are safe, reliable, and compliant with national codes like VSB6, ensuring heavy vehicle compliance in Victoria.

This process not only protects drivers and other road users by maintaining vehicle safety but also simplifies regulatory approval, allowing modifications to be legally recognised across all Australian states. Additionally, certification provides clear documentation through modification plates, making future inspections and resale easier.

In essence, vehicle modification certification is vital for ensuring heavy vehicles remain safe, legal, and fit for purpose after any modification.

Finite Element Analysis (FEA)

✔ Static, Dynamic & Fatigue Analysis – Tailored to your project requirements.
✔ Accurate Load Determination – Selecting the correct FEA methodology for precise results.
✔ Regulatory Compliance – Ensuring designs meet Australian Design Rules (ADR), Australian Standards (AS), and other regulations.
✔ Weak Point Identification & Optimization – Enhancing safety, efficiency, and performance.
✔ Certified Engineering Reports – Issued and signed by a Chartered Engineer for regulatory approval.

Heavy Vehicle engineer in high-visibility vest writing on a clipboard in front of a truck engine with visible cables and mechanical components.

Chartered Engineer Reports, Certificates & Sign-Off

  • Engineering Reports & Certification – Comprehensive assessments for compliance, safety, and performance.
  • Design Verification & Compliance Sign-Off – Evaluating designs to meet Australian Design Rules (ADR), Australian Standards (AS), and other regulatory requirements.
  • ADR certifications.
  • Professional Sign-Off by a Chartered Engineer – Ensuring your project meets legal and industry standards.

Join our WhatsApp chat or call us for orders or a free consultation.

Heavy Vehicle Modification Services VICTORIA

At ModiCert, we specialise in heavy vehicle modifications that meet the highest safety and compliance standards. Whether you’re upgrading, repurposing, or enhancing vehicle performance, our expert heavy vehicle engineer in Victoria ensures every modification is professionally assessed and tailored to your needs. We also assist in securing a VASS approval certificate, streamlining the certification process so your vehicle meets all regulatory requirements with ease.

We’ve worked with all kinds of heavy vehicles and understand what it takes to get the job done right. Our team focuses on clear communication, reliable service, and quick turnaround times, making ModiCert a trusted choice for heavy vehicle owners.

Frequently Asked Questions

In Australia, a heavy vehicle has a gross vehicle mass (GVM) or aggregate trailer mass (ATM) over 4.5 tonnes. Only changes that affect design, safety, or compliance need approval. Small additions like extra lights, aerials, or air-conditioning usually do not require it if the vehicle stays compliant. Major or safety-related changes such as suspension work, chassis modifications, or mass rating upgrades must be approved by an engineer under the Heavy Vehicle Modifications Code (VSB6).

A VASS (Vehicle Assessment Signatory Scheme) certificate is an engineer’s approval for a heavy vehicle modification. It confirms the work meets all required standards. Any heavy vehicle over 4.5 tonnes GVM modified under VSB6 rules needs a VASS certificate. This approval is accepted across Australia.

Any change to structure or systems that affects safety or compliance often needs certification. Examples include suspension upgrades, brake changes, chassis or wheelbase adjustments, custom body mounts, tow coupling or fifth wheel installation, and changes to mass ratings (GVM, ATM, GCM). Accessories like extra lights or radio aerials usually don’t require it.

Only a certified engineer, known as an Approved Vehicle Examiner (AVE) or VASS signatory can approve and certify heavy-vehicle modifications. They inspect the work and issue the compliance certificate required for the modification to be legally recognised.
Certification ensures the modification meets safety and legal standards. It keeps the vehicle roadworthy and compliant with national Heavy Vehicle Standards. Without it, a modified heavy vehicle may be unsafe, illegal to drive, or fail registration checks.
Timeframes vary with the engineer’s schedule and the complexity of the work. After passing inspection and providing all documents, most certificates are issued in a few days. Some engineers offer faster service for urgent cases.
FEA is a computer simulation used to predict how structural changes will perform in real use. Engineers use it to test the strength and durability of changes like chassis extensions or body mounts before approval.
Only a Chartered Engineer can legally certify heavy vehicle modifications. Their approval confirms the work meets all Australian Design Rules and safety requirements.
Yes. Certificates from approved engineers in other states are generally valid nationwide. You don’t need to recertify when moving or selling the vehicle across states.