This Tariff Concession Order applies Schedule 4 item 50 to a narrowly described class of bronze gate valves (manually operated, screwed‑in bonnet, solder‑joint tubing ends), effective 29 January 2009 until revoked. Decided under section 269P of the Customs Act by a delegate of the CEO, it changes the tariff treatment for those imports. Importers are the primary parties affected (paying less or no duty depending on Schedule 4), which alters import pricing and sourcing incentives while creating a compliance requirement to meet the product description.