Queensland's leading engineering certifier

Design and technical assurance specialist for vehicle systems engineering

GVM upgrade certification – Caravan ATM rating upgrade certification – All vehicle engineering certification

QLD Department of Transport and Main Roads Approved Engineer

GVM Upgrade Certification

Are you looking to upgrade your Gross Vehicle Mass (GVM) to raise the carrying capacity of your vehicle? If so it must be engineering certified and be compliant with goverment standards. Transmod can certify custom GVM upgrades for a huge range of vehicles as well as SSM kits under Queensland modification code LS11. Talk to us today about your requirements.

Trailer and caravan ATM upgrade certification

Has you caravan’s manufacturer underestimated it’s weight? Transmod can design a solution to any weight rating that you want under Queensland modification code LS12. In many cases Transmod can certify a higher weight rating on your standard caravan.

Mechanical engineering design and certification

Transmod offers a wide range of mechanical engineering services to businesses and the general public. With an RPEQ mechanical engineer on staff, Transmod can provide government recognised verification that designs are safe and comply with applicable standards. Common services include crane and EWP 10-year major inspection certificates, bespoke lifting and towing equipment, mod plates and much more.

Technical Assurance Certification Process





Transmod is the leading technical assurance specialist for vehicle systems engineering in Queensland. We specialise in verifying that designs are safe, legal and comply with relevant standards.

Transmod provides inspection, testing and certification services for both light and heavy vehicles. At our location in Maryborough, Queensland, customers can access Queensland Department of Transport and Main Roads (TMR) and National Heavy Vehicle Regulator (NHVR) modification plates covering all VSB6, VSB14 and QCOP codes.

Transmod’s engineer is a TMR Approved Person (AP) and NHVR Approved Vehicle Examiner (AVE). Transmod has full authorisation to conduct independent certification on behalf of these government regulators. Transmod is also a Road Vehicle Certifications Scheme (RVCS) agent and licensee that can assist with ADR compliance evidence packages and submissions.

All services are provided by a trusted Registered Professional Engineer of Queensland (RPEQ) with many years of experience. Registrations with other engineering bodies include Engineers Australia and the National Engineers Register (NER).


Feedback from out clients

Transmod has provided Ken Day’s Automotive Services with helpful and professional vehicle engineering services for over 5 years Services

Duane Day – Managing Director, Ken Day’s Automotive

Transmod has provided Persal & Company with a professional and prompt service assisting in the 5-year and 10-year rebuilds of our EWP, mobile crane and other engineering projects, ensuring all requirements are met and comply with the relevant Australian Standards. I highly recommend the service Transmod provides.

Jason Wylie – Fabrication Supervisor, Persal & Company

Transmod helps us ensure that the caravan upgrade projects that we undertake comply with ADR 62 and VSB1. Their advice is practical and supports the safe and cost-effective result our customers want. I’d recommend them to anyone requiring a consulting mechanical engineer.

Trent Petersen – Director, Maximum Engineering

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