Mechanically, this Order attaches Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 to goods described as “shrink rings” (tariff classification 8483.60.90) — parts for wind‑turbine powered generators — effective 8 Sep 2005 until revoked (s.269P; ss.269SC–269SD). Importers of those parts receive the Schedule 4 tariff treatment (i.e. altered customs duty treatment); the declaration and any revocation are made by the Chief Executive Officer (or delegate). Compliance requires correct classification and attention to any revocation or end date.