This Order declares that large (outside diameter > 406.4 mm) mild-steel or stainless-steel pipes with an internal ceramic tile lining (customs tariff 7305.31.00) are goods to which item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies. It takes effect from 21 March 2011 and remains in force until revoked; it therefore changes how importers of those specific pipes are treated for tariff/concession purposes and places administration and revocation power with the customs delegate under section 269P.