This Order, made under s269P of the Customs Act 1901, declares that specific three‑phase separators for hydrogen sulfide oil and gas wells (tariff code 8479.89.90) qualify for the Schedule 4 concession shown in Column 2 (item 50). It operates from 20 October 2005 and continues until revoked under ss269SC or 269SD or any date shown in Column 2. Importers of the specified equipment are directly affected because the Order changes the tariff treatment they claim and therefore the duties and compliance steps required.