The driver of a road tanker which is being used for the conveyance by road of a grouped hazardous substance until such time as it has been cleaned or purged as contemplated in regulation 2(2) shall ensure that--
||during the operation of such road tanker on a road all hazard warning panels and compartment labels and a scale card are fitted, displayed or kept to hand as the case may be on or in such road tanker as required by these regulations;
||such hazard warning panels and compartment labels are kept clean and legible and, subject to regulation 4(2), free from obstruction from such time as a grouped hazardous substance is loaded into such tanker until such tanker has been cleaned or purged as contemplated in regulation 2(2);
||if the nature or extent of the hazard posed by such road tanker changes materially the affected warning panels and compartment labels are changed, fitted and displayed as required by these regulations;
||his driver's licence or other document referred to in regulation 10(1)(b)(i) is readily available on his person or in such road tanker for inspection purposes;
||an accident is reported to the carrier immediately after the accident has occurred.