This Tariff Concession Order (made under s.269P of the Customs Act 1901) declares that inflatable spa pools classified at tariff line 9506.99.90 are to which Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 applies, effective 16 October 2008 until revoked. Mechanically, it changes customs treatment for importers of inflatable spa pools (who must meet classification and documentation requirements), directs customs to apply the Schedule 4 concession, and therefore affects import costs and government customs revenue.