Yes. For carrying UN 0004 in 1A1 packages with a total load of 30 tonnes, the driver must hold an ADR driver training certificate, including the Class 1 specialization.
Reason:
- ADR requires the driver training certificate to be carried on board when ADR provisions require it (ADR 8.1.2.2, Volume 2, page 641) .
- For vehicles transporting dangerous goods of Class 1, except Division 1.4 compatibility group S, the driver must have completed a Class 1 specialization course (ADR 8.2.1.4, Volume 2, page 648) .
- UN 0004 is covered by Class 1 explosive packing provisions, including 1A1 steel drums under the applicable packing provisions, with special packing provision PP26 applying to UN 0004 (ADR 4.1.4.1, P112, Volume 2, page 55) .
So the required certificate is not just the basic ADR certificate: it must be valid for Class 1, unless the goods were specifically Division 1.4S, which UN 0004 is not indicated as being here.
Sources