# Digital sign-off for licensed certifiers and signatories

> Certifiers can review and countersign modifications in ModVault using a 6-digit handover code or a shareable signing link, without creating an account. The result is a hashed, tamper-evident certificate record tied to the vehicle and the evidence.

Source: https://modvault.com.au/for/certifiers-and-engineers/
Last checked: 2026-08-24

## The problem from your side of the bench

Owners arrive with a finished car and a fragment of the evidence you need. Photographs of the mounts before they were boxed in do not exist. Receipts identifying the actual parts fitted cannot be found. What should be an assessment becomes an archaeology exercise, and you carry the professional risk of the gaps.

## What a ModVault handover looks like

- The owner logs each modification with its VSB14 section as the build progresses
- Staged photographs, parts specifications and receipts attach to the modification, dated
- The owner hands you a 6-digit code, or emails you a signing link
- You review the evidence, add your scheme, licence reference and notes, and countersign
- The record is hashed — later changes are visible, so your sign-off means something

## No account, no software to install

A signing link opens standalone in a browser. You do not need a ModVault account to review and sign.

## Scheme coverage

The signing form covers VSCCS (NSW), VASS (VIC), Approved Person (QLD), RES (SA), DoT approval (WA), AVCAIS (TAS), MVR engineer (NT) and RES (ACT).

## Frequently asked questions

### Do certifiers need a ModVault account?

No. A signing link or handover code lets a certifier review and countersign without creating an account.

### Is the signed record tamper-evident?

Yes. Sign-offs are hashed against the evidence, so subsequent changes to the record are detectable.

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This guide is general information for Australian vehicle owners, not legal or engineering advice. Requirements change and are applied at the discretion of your state authority. Always confirm with your road authority or a licensed certifier before starting work.