This Order grants a tariff concession (Schedule 4 Item 50) for imported goods classified at 9406.00.00: prefabricated cleanrooms that include any four of the listed components. It has effect from 09.09.05 and continues until revoked (s.269P; ss.269SC/269SD).
It primarily affects importers and customs administration: importers pay the reduced or different duty only if the shipments match the description and tariff classification; a delegated officer applies and can revoke the concession, so compliance and documentary proof are required.