This Order declares that "parts, A‑frame tower crane, being tower sections" (tariff classification 8431.49.90) are covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, making them eligible for the specified tariff concession. It took effect on 09.12.08. Mechanically, a delegate of the Chief Executive Officer made the declaration under s269P; the concession remains in force until revoked under ss269SC/269SD or a specified expiry. Importers therefore receive the Schedule 4 duty outcome but must correctly classify goods and face revocation risk.