This Order declares that specific air compressors — volumetric rotary‑vane types with operating pressure of at least 750 kPa (tariff classification 8414.80.20) — are goods to which item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, changing their import tariff treatment. It takes effect from 28 August 2009, was signed by a delegate of the Chief Executive Officer, and remains in force until revoked under sections 269SC or 269SD, so it directly affects importers and customs administration.