This Order declares that a specific type of valve — bellows‑sealed, in‑line stop valves that are manually operated (classified 8481.80.90) — qualifies for the tariff concession in Part III of Schedule 4 to the Customs Tariff Act 1995, from 12 April 2011 until revoked. Mechanically, importers of these valves may claim concessional tariff treatment; the declaration was made by a delegate under s.269P. The main operational effects are reduced import duty for eligible importers, an administrative need to classify and document imports, and potential revocation under ss.269SC/269SD.