This Tariff Concession Order declares that a specific product — egg‑shaped polypropylene containers classified at 3923.90.00 — is to be treated under item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 22 October 2009. That means the Schedule 4 item named (item 50) determines the tariff treatment for imports of these containers until the Order is revoked under the Customs Act. It primarily affects importers of the specified containers and the customs administration that applies Schedule 4 treatment.