Vehicle modification certification tools
Mod-check guidance for consumers and AI-powered referencing and workflow tools for Engineers.
Mod Check
Free guidance for vehicle owners planning or completing modifications.
- Enter your vehicle details
- Select your modifications
- Accurate, up-to-date answers about any modification
- Connect directly with engineers who can certify your mods
- 100% free
Ask ADR
Reference and workflow tools for vehicle engineers and certifiers. Free to start — upgrade for AI and leads.
- 650+ ADRs, NCOPs, VSBs and related standards
- Templated checklists and jobs with PDF export
- ADR applicability search
- Dual screen
- AI chat, vehicle lookup and leads (Pro)
Mod Check — Key features
Free guidance for vehicle owners. Know what's required before you modify or get certified.
Enter your vehicle
Enter your vehicle details so we can give you accurate, vehicle-specific guidance.
Select your modifications
Tell us what you want to do or have already done—suspension, engine, brakes, body, and more.
AI-powered answers
Get accurate, up-to-date answers about what is required for your modifications. Powered by the latest Australian vehicle regulations.
Find an engineer
Connect directly with qualified vehicle engineers in your area who can certify your modifications.
100% free for vehicle owners
No sign-up, no subscription. Free guidance so you understand the rules before you modify or get certified.
Ask ADR — Key features
Built for vehicle engineers and certifiers. Free to start — upgrade to Pro for AI chat and lead generation.
Document Library
Browse and view all 650+ ADRs, NCOPs, VSBs, QCOP, and related Australian standards directly in-app. Always up to date.
Templated Checklists
Pre-built checklists for VSB 14, VSB 6, QCOP, and more — aligned to the relevant standards to cover every compliance requirement.
Jobs
Complete mod checklists in-app as structured job procedures, then export professional PDF reports for your clients.
ADR Applicability
Enter vehicle type and manufacture date to instantly determine which Australian Design Rules apply. Fast and accurate.
Dual Screen
Split-screen view of any two features simultaneously — compare documents, reference a checklist while viewing the library, and more.
AI Chat (Pro)
Pro feature: ask questions in plain English and get instant answers with citations to the exact ADR, NCOP, or standard section.
Vehicle Lookup (Pro)
Pro feature: enter a rego and state to instantly retrieve vehicle details — VIN, dimensions, weights, towing capacities, and more. Auto-fills into jobs.
Lead Generation (Pro)
Pro feature: receive leads directly from vehicle owners who use Mod Check and need an engineer for their modification.
iOS, Android & web
Use Ask ADR on any device. Your account and data sync across all platforms.
Frequently Asked Questions
Common questions about vehicle modifications, certification, and Ask ADR.
View FAQ & SupportTwo products, one platform
Mod Check for vehicle owners. Ask ADR for engineers — free to start, upgrade for AI and leads. Both powered by the same library of Australian vehicle standards.