Body & Chassis Modifications – LH Code Certification
Get Your Custom Vehicle Mods Certified and Compliant
Whether you're stretching a limo, converting a van to a campervan, or rebuilding a chassis, your mod must meet strict compliance requirements under the National Code of Practice – VSB14 Section LH: Body and Chassis.
AutoCert provides mobile inspection and certification for all LH Codes (LH1–LH11) to keep your build road legal in Queensland.
What Are LH Codes?
| Code |
Modification Type |
Examples |
Certification Required? |
| LH1 |
Roof Conversion (Design) |
Convertible or sunroof design approval |
✅ Yes |
| LH2 |
Roof Conversion |
Chop-top, convertible builds |
✅ Yes |
| LH3 |
Wheelbase Conversion (Design) |
Stretch limo or cab-chassis wheelbase design |
✅ Yes |
| LH4 |
Wheelbase Conversion |
Execution of a stretch/mod to chassis |
✅ Yes |
| LH5 |
Vehicle Construction (Design) |
New body on chassis, fibreglass or structural mods |
✅ Yes |
| LH6 |
Vehicle Construction |
Physical build based on LH5 design |
✅ Yes |
| LH7 |
Body/Chassis Variant Conversion |
Ute-to-wagon, van-to-utility using OEM-style panels |
✅ Yes |
| LH11 |
Campervan/Motorhome Conversion |
Van conversions with beds, cooktops, seating mods |
✅ Yes |
| LH8–LH10 |
Not in Use |
|
|
Do You Need LH Code Certification?
✅ YES, if you are:
- Converting a roof or adding a sunroof
- Stretching the wheelbase or creating a limo
- Changing seating layout or adding extra seats
- Creating a campervan/motorhome
- Converting to another body variant (wagon, utility, dual cab)
❌ NO, if you are only:
- Adding bonnet scoops or pins
- Replacing bolt-on panels
- Adding tint or custom mudguards (as long as they meet ADRs)
Common Modifications We Certify
- Convertible (chop-top) builds
- Limo or ute wheelbase extensions
- Campervan interiors with sleeping/cooking
- Dual cab and tray setups
- Tilt fronts and fibreglass bodywork
- Rear seating and custom window conversions
Our 5-Step Certification Process
- Pre-Assessment & Consultation – We advise which LH code and documents you’ll need.
- Design Review or Inspection – We inspect the work or pre-approve your drawings.
- ADR & Safety Compliance – We check compliance against required ADRs.
- Certification Report & Mod Plate – You receive full documentation and compliance plate.
- TMR Registration Update – We guide you on updating your rego with TMR.
Why Choose AutoCert?
✅ Mobile inspection service in Greater Brisbane
✅ Certified under all LH codes
✅ RPEQ-qualified engineering sign-off
✅ Fast, clear documentation
✅ Campervan, limo, 4x4, and vintage project experts
