Where a serious accident or incident takes place during the carriage of dangerous goods as described in sub-sections 1.8.5.1 and 1.8.5.3 of ADR in relation to carriage by road or of RID in relation to carriage by rail, the carrier in relation to carriage by road and the railway infrastructure manager in relation to carriage by rail, shall comply with the reporting requirements in sub-section 1.8.5.1 of ADR in relation to carriage by road or of RID in relation to carriage by rail.