This Tariff Concession Order applies Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 to a narrowly described imported good: “ALARMS, REVERSING, AUDIBLE PUBLIC WARNING, external mounting, not less than 24 V” (tariff classification 8512.30.00), effective 21 April 2009. The change alters how customs treats imports of that product (affecting importers’ tariff treatment and their documentation/classification obligations); it was made under s.269P of the Customs Act 1901 by a delegate and remains until revoked under ss.269SC–269SD.