ADR 2027 comes into force on 1 January 2027. ADR 2027 from 1 Jan.

What Happens at a DGSA Audit?

How to prepare, what we look at on the day, and the findings we see most often.

Updated for ADR 2025 · Last reviewed October 2026 · Written by a practising DGSA

In short

A DGSA audit is your adviser's check of how your business handles dangerous goods in practice, from the paperwork to the loading bay. It's how your DGSA carries out their monitoring duties, and it feeds into your annual report. For a single site it usually takes between half a day and a day.

ADR doesn't set out a formal audit procedure, but ADR 1.8.3.3 requires your DGSA to monitor a long list of practices and procedures. A site audit is the practical way to do that.

Before the audit

To make the visit efficient, have these ready:

  • A list of the dangerous goods you handle, with safety data sheets
  • Examples of recent transport documents
  • Training records for everyone involved with dangerous goods
  • Your procedures and emergency arrangements
  • Records of any incidents, near misses or roadside stops
  • Details of hauliers and other subcontractors you use
  • Last year's DGSA annual report and action plan

On the day

1. Opening meeting

We agree the scope, talk through any changes since the last visit, and hear about any concerns.

2. Site walk

We look at where dangerous goods are received, stored, packed and loaded: packaging condition, marks and labels, segregation, and how loads are secured.

3. Vehicles and equipment

Where you operate your own vehicles, we check placarding, the equipment that must be carried, and the instructions in writing.

4. Documents and records

We check transport documents, training records, procedures and, where required, your security plan.

5. Talking to staff

A short conversation with the people doing the work often shows more than any document.

6. Closing summary

Before leaving, we talk through the main findings, so nothing in the written report comes as a surprise.

Common findings

These are some of the issues DGSA audits find most often:

  • Training records missing, out of date, or not matched to each person's role
  • Errors on transport documents, such as the wrong proper shipping name or missing information
  • Missing, wrong or damaged marks and labels, including limited quantity marks
  • Incompatible goods stored or loaded together
  • No written procedures, or procedures that don't match what happens in practice
  • No checks on whether hauliers and subcontractors are competent
  • Missing vehicle equipment or out-of-date instructions in writing
  • No security plan where high-consequence dangerous goods are handled

After the audit

You receive a written report with clear, prioritised findings and a practical action plan. We help you put things right, check progress through the year, and use the results in your DGSA annual report.

An audit isn't an inspection. Its purpose is to find and fix problems before an enforcement officer, an insurer or an incident does.

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Frequently Asked Questions

At least once a year for most businesses, so the DGSA can monitor your practices and prepare the annual report. Higher-risk or busier sites may benefit from more frequent visits.

For a single site, usually between half a day and a full day, depending on the size of the site and the range of dangerous goods handled.

Documents can be reviewed remotely, but a DGSA cannot properly monitor packing, loading and storage without seeing them. We recommend at least one on-site visit a year, unless you only consign.

Talk to a DGSA

Speak directly to a practising Dangerous Goods Safety Adviser, not a sales adviser.

Call 0203 137 3014

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