Tariff Concession Order (TC 0712014) mechanically treats specified polyethylene terephthalate (PET) injection‑moulding cold‑half parts as goods covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 18 July 2007 and continuing until revoked under ss.269SC/269SD of the Customs Act 1901. Issued by a delegate under s.269P, it reduces customs duty for importers of the listed parts, allocates decision‑making to the delegate, and creates classification and compliance obligations for importers and customs officials.