Somewhere in almost every dangerous goods operation there is a person whose job title most of the industry has never heard of: the dangerous goods safety adviser, the DGSA. The duty to appoint one catches hauliers by surprise because it attaches not to the size of the fleet but to the activity itself - transport dangerous goods as a business, and the obligation is yours unless a specific exemption covers you. The government’s guidance on appointing a DGSA is refreshingly short, and worth reading before the first cylinder, drum or battery load goes on a vehicle.
The rule is simple: you must have a dangerous goods safety adviser if you transport dangerous goods - and the duty also reaches businesses that pack, load, fill or unload them. The exemptions are narrow and specific. You do not need a DGSA if you only carry dangerous goods occasionally - the guidance’s example is breakdown recovery vehicles, which encounter dangerous goods incidentally rather than as freight. You do not need one if you only receive dangerous goods as the consignee. And you do not need one where the carriage is in limited quantities - the small-consignment provisions that let many retail and service deliveries run under lighter rules. Everything else is in scope. A three-truck firm with a weekly drum contract is as obliged as a national tanker fleet; the duty scales with the activity, not the turnover.
The consignee exemption deserves a careful read, because it cuts both ways. Receiving dangerous goods does not make you a DGSA business - but the moment you start shipping them back out, even your own returns or empties that remain regulated, you are on the transport side of the line. Retailers and distributors running returns of aerosols, paints or cleaning chemicals discover this boundary regularly, usually at audit.
The guidance offers two routes, and both are legitimate. You can train a member of staff as a DGSA: they sit the vocational training certificate examinations, and you have an adviser on the payroll who knows your operation from the inside. Or you can bring in an external adviser - a consultant DGSA who covers your duty on a contract. The trade-off is the usual one. In-house builds deep, available knowledge and suits operations where dangerous goods work is constant. External suits smaller fleets with intermittent DG work, where a full-time salary for a part-time problem makes no sense. What is not optional is having the function covered at all - and the Department for Transport will take questions on appointment directly; the guidance publishes its contact email for exactly that.
The DGSA’s job is to monitor compliance with the dangerous goods rules and advise the business on meeting them. In practice that means reviewing procedures for classifying and documenting consignments, checking that vehicles, equipment and crew training match the loads being carried, investigating accidents and near-misses involving dangerous goods, and preparing the annual report on the business’s dangerous goods activities that the rules expect. A good DGSA is the person who reads the load sheet and spots that tonight’s trailer mixes classes that should not travel together, or that the driver’s ADR card does not cover the class the office just booked.
The adviser role is deliberately not a substitute for management responsibility. The legal duties stay with the operator; the DGSA monitors and advises. Businesses that treat the appointment as outsourcing the risk misunderstand the structure - and enforcement treats it the same way. When something goes wrong, the question is what the operator did with the advice it was given, not whether it had hired someone to give it.
Three failure patterns recur. The first is simply not knowing the duty exists until an audit or an incident surfaces it - dangerous goods work picked up opportunistically, no DGSA, no annual report, no monitoring. The second is a paper appointment: an external DGSA named on a contract who has never seen the site, never reviewed a procedure and could not pick the transport manager out of a line-up. The adviser function has to operate, not merely exist. The third is assuming the driver’s ADR certificate covers the business: the ADR card qualifies the driver, the DGSA duty sits on the undertaking, and one does not discharge the other.
For an operator weighing up dangerous goods work, the honest calculation includes the DGSA duty in the overhead. The work pays better than general haulage precisely because the compliance bar filters out casual competition - the training certificates, the equipment, the documentation and yes, the adviser. Operators who appoint early, pick the in-house or external route deliberately, and let the DGSA actually monitor find that the same machinery that satisfies the rules is what wins contracts with chemical and fuel customers, who audit their carriers as a matter of routine. The adviser is not the cost of doing dangerous goods work; it is part of the product being sold.