This Tariff Concession Order declares that “MASTER CONTROLLERS, TRAM” (including handle sensors, start‑blocking push buttons and dead‑man capacitive sensors) are goods to which Item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 6 December 2011 until revoked. It affects importers, customs brokers and traders by changing the customs treatment of these specific tram controllers — altering the tariff/concession position and associated administrative obligations — and can be revoked under sections 269SC or 269SD of the Customs Act 1901.