TCO 1009826 (from 25 Feb 2010) declares that axial‑flow shut‑off valves classified at tariff 8481.80.90 with a bore diameter greater than 425 mm are goods to which item 50 of Part III, Schedule 4 of the Customs Tariff Act 1995 applies. The declaration was made under s269P of the Customs Act 1901 and continues until revoked under ss269SC/269SD or a date in Column 2. Importers and manufacturers are directly affected: they must use the stated tariff classification and meet customs verification, while the delegate’s decision creates administrative discretion and compliance costs.