6 Packaging markings No manufacturer or importer of packaging designed and constructed for use with hazardous substances may mark the packaging as specified in paragraphs 6.1.2 and 6.1.3 of the UN Model Regulations unless--- (a) the markings comply with the corresponding elements of those paragraphs, including the codes for packaging type, UN Packing Group, and the UN packaging symbol; and (b) the codes marked for UN Packing Groups I, II, or III are marked on packaging that complies with the tests set out in Schedule 1, Schedule 2, or Schedule 3 respectively; and (c) the design of the packaging has also been test certified as complying with the tests set out in Schedule 1, Schedule 2, or Schedule 3.