This Tariff Concession Order declares that “COILERS, CORRUGATED PIPE” classified under tariff heading 8479.89.90 are goods to which Item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 26 March 2007. The declaration remains in force until revoked under sections 269SC or 269SD of the Customs Act 1901. Mechanically, the Order changes the tariff treatment at import — affecting importers’ duty liability and customs documentation — and creates an administrative revocation point under ss.269SC/269SD.