Castlemaine, Victoria ● info@castlemainevass.com.au
VASS Signatory Scheme — Victoria

Vehicle
Modification
Specialists

Supporting builders, enthusiasts and workshops across Central Victoria. Engineering assessments and VASS certification for all modified vehicles.

Submit an Enquiry Our Services
Modification Plates & Full Documentation
Engine Conversions, 4WD & Street Rods
Local, Experienced & Trusted
Submit an Enquiry

Planning a modification? Tell us about your project.

info@castlemainevass.com.au

All Vehicle Types

Cars, 4WDs, custom builds, heavy vehicles

Central Victoria

Castlemaine, Bendigo, Ballarat & surrounds

Full Documentation

Modification plates and all required paperwork

What We Do

Our Services

Comprehensive vehicle engineering and VASS certification across all modification types.

01

Engine Conversions

Engine swaps, performance upgrades and custom vehicle builds. Full engineering assessment and VASS certification provided.

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02

4WD Modifications

Suspension lifts, kit installs, tyre upgrades and related 4WD modifications certified to Victoria's compliance standards.

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03

Street Rods & Custom Vehicles

Engineering and certification for hot rods, rat rods, custom builds and restorations. Experience across all eras and styles.

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04

Heavy Vehicle Engineering

Engineering assessments and certification for heavy vehicle modifications, ensuring roadworthy compliance across all classes.

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05

Suspension & Brake Modifications

Assessment and certification for modifications affecting handling and braking. Legal, safe and fully documented.

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06

EV Conversions

Engineering support and VASS certification for electric vehicle conversions. Fully compliant with Victorian EV regulations.

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07

VASS Certification

Full VASS engineering certificates (modification plates) for all applicable modifications throughout Victoria. From initial assessment through to final plate — we manage the entire certification process and ensure your vehicle meets all legal requirements to get back on the road.

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How It Works

The Certification Process

A straightforward process from first contact to modification plate in hand.

1

Initial Enquiry

Contact us with your vehicle details and the modifications you're planning. We'll advise if VASS certification is required and outline the process.

2

Engineering Assessment

We inspect and assess the vehicle and modifications against Victorian engineering standards and ADR requirements.

3

Certification & Plates

Upon passing assessment, we issue the VASS engineering certificate and modification plate — your legal authority to run the modification.

4

Back on the Road

With full documentation in hand, your vehicle is compliant and road-legal. We support you through any VicRoads re-registration steps.

Classic vehicle — Castlemaine VASS Certification
Who We Are

Castlemaine VASS
Consulting

Castlemaine Vass Consulting provides vehicle engineering and VASS certification services throughout Castlemaine, Bendigo, Ballarat, Daylesford, Kyneton and Central Victoria.

We provide engineering assessments and certification for modified vehicles — including engine conversions, 4WD modifications, street rods, custom vehicles, heavy vehicles and all other modifications requiring VASS certification in Victoria.

Service Areas
Castlemaine Bendigo Ballarat Daylesford Kyneton Macedon Ranges Central Victoria
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Got Questions?

Frequently Asked Questions

Common questions about VASS certification and vehicle modifications in Victoria.

VASS (Vehicle Assessment Signatory Scheme) is a Victorian Government scheme authorising qualified engineers to assess and certify vehicle modifications. A VASS certificate — or modification plate — is required for many modifications before the vehicle can legally operate on Victorian roads.
Common modifications requiring VASS certification include engine conversions, suspension lifts and lowering, brake system changes, structural body modifications, non-standard tyre and wheel fitments, tow bar installations above rating, and conversion to electric or alternative fuel drive systems.
In many cases, yes. We can inspect and assess existing modifications against the required standards. Where modifications need rectification to achieve compliance, we'll advise exactly what's required. Contact us to discuss your specific vehicle and situation.
The first step is to get in touch with details of your vehicle and planned modifications. Use the enquiry form on this page or email info@castlemainevass.com.au. We'll advise whether certification is required and explain the process.
Yes — we service the broader Central Victoria region including Bendigo, Ballarat, Daylesford, Kyneton, the Macedon Ranges and surrounding areas. Contact us to discuss your location.
Timeframes depend on the complexity of the modification and whether the vehicle passes assessment first time. Simple modifications can often be assessed and certified quickly. More complex builds may require additional documentation or rectification work. We'll give you a realistic timeframe at initial enquiry.
Get In Touch

Ready to Get Your
Build Certified?

Whether you're planning a build, mid-project or already modified — get in touch to discuss how we can help.

Emailinfo@castlemainevass.com.au
LocationCastlemaine, Victoria
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