Highway Code Rule 284
Vehicles carrying dangerous goods in packages will be marked with plain orange reflective plates. Road tankers and vehicles carrying tank containers of dangerous goods will have hazard warning plates (see ‘Vehicle markings‘).
Section: Breakdowns and incidents (rules 274 to 287) Subsection: Incidents involving dangerous goods (rules 284 to 285)Highway Code Rule 285
If an incident involves a vehicle containing dangerous goods, follow the advice in Rule 283 and, in particular
- switch off engines and DO NOT SMOKE
- keep well away from the vehicle and do not be tempted to try to rescue casualties as you yourself could become one
- call the emergency services and give as much information as possible about the labels and markings on the vehicle. DO NOT use a mobile phone close to a vehicle carrying flammable loads.