This Order makes a specific kind of steel line pipe (electric-resistance-welded, API Specification 5L grade X65, outside diameter ≥508 mm and wall thickness ≥19.1 mm) eligible for the tariff concession listed as item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 14 April 2011 until revoked under the Customs Act. It affects importers of that pipe by changing the tariff treatment that applies; the CEO’s delegate declares eligibility (s.269P) and revocation follows ss.269SC–269SD, and compliance requires meeting the product standard and tariff classification (7305.12.00).