This Order treats specific small AC generators (tariff heading 8502.20.00) — 50 Hz or greater, at least 240 V AC, up to 5,500 W output, with a built‑in voltmeter — as falling under item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 22 September 2005. Mechanically, that changes the customs tariff treatment of imports that match this technical description. The delegate issued the order under s269P of the Customs Act 1901 and it remains in force until revoked under ss269SC or 269SD, so importers bear the compliance burden of matching the description to claim the concession.