This Tariff Concession Order declares that imports classified at 8414.59.90 — rotary positive‑displacement blowers with a flow rate not less than 100 cubic metres per hour — are covered by item 50 in Part III of Schedule 4 of the Customs Tariff Act 1995, effective 10 July 2006 and continuing until revoked (made under Customs Act s.269P; revocation under ss.269SC/269SD). It reduces the import duty cost for those specific blowers, creates an incentive to import them, and requires accurate tariff classification and record‑keeping; the concession may be revoked by the delegate.