What this order does: It declares that a cell‑culture bioreactor (tariff classification 8419.89.90) is covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 18 October 2005 until revoked. Mechanically, the instrument changes the tariff treatment applied at import for that specific good, decided by the Chief Executive Officer’s delegate under section 269P of the Customs Act 1901. The immediate parties affected are importers of the listed bioreactor and customs officials administering tariff treatment.