Regulation 3 updates references in regulation 1 of the Principal Regulations to the current editions of the approved classification and labelling guide and the approved supply list under the Chemicals (Hazard Information and Packaging for Supply) Regulations 1994. Regulation 5 amends regulation 7 of the Principal Regulations so that for a second and subsequent consignments in a succession of consignments of special waste the code identifying the first consignment in that succession must be enter