Tariff Concession Order 0920520 declares that polyurethane sealants and/or adhesives for concrete or masonry classified at tariff heading 3214.10.00 are eligible for the Schedule 4 Part III concession item 50 under the Customs Tariff Act 1995. It took effect 17 June 2009 and continues until revoked under ss.269SC or 269SD of the Customs Act 1901 (made under s.269P).
The concession lowers the customs duty payable on affected imports; importers therefore pay less duty, the delegate of the CEO (who made the Order) decides applicability and revocation, and importers must correctly classify and claim the concession at import to obtain the benefit.