This Tariff Concession Order, made under section 269P of the Customs Act 1901, declares that DIN-rail mounted residual-current and overcurrent circuit breakers (RCBOs) classified at tariff code 8536.20.00 are goods to which the item in Part III of Schedule 4 to the Customs Tariff Act 1995 (item 50) applies. It took effect on 05.09.08 and remains in force until revoked. The Order changes how these specified imports are treated under Schedule 4, affecting importers who declare the goods and customs officials who apply that Schedule.