This Tariff Concession Order designates a narrowly specified polyethylene — defined by density (945–948 kg/m3), melt flow rate (3.3–5.0 g/10 min) and carbon black content (0.10–0.35%), measured by the cited ISO/ASTM tests — as a good to which Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 applies, effective 20 April 2007. It was declared by a delegate of the Chief Executive Officer and remains until revoked under sections 269SC or 269SD.
In practical terms, the Order changes the tariff treatment importers and customs officials must apply to imports meeting these lab‑specified parameters; compliance requires the specified tests and accurate tariff classification, and customs delegates exercise revocation and administrative discretion.