This Order declares that concrete spacer blocks (with or without a metal clip) classified at tariff heading 6810.99.00 are covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, providing the tariff concession stated. It took effect 7 Nov 2011 and continues until revoked under ss 269SC or 269SD of the Customs Act 1901. Importers of the specified product receive the tariff treatment in Schedule 4; the delegate of the CEO made the decision and importers must correctly classify and document eligibility.