This Tariff Concession Order (TCO 0908772) declares that imported goods described as “grids, flooring” with concrete strength 80 MPa (±10%), classified at tariff heading 6810.99.00, are subject to item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 16 March 2009. Mechanically, that changes the customs duty outcome for importers of those goods (who can rely on item 50), places implementation and revocation power with a customs delegate under s269P (revocation under ss269SC/269SD), and requires correct tariff classification to claim the concession.