This Tariff Concession Order (operative 04.02.2009) declares that glass‑reinforced‑plastic junction box casings, classified 3926.90.90, are subject to Item 50 of Part III of Schedule 4 to the Customs Tariff Act 1995, using the power in s.269P. It takes effect from 4 Feb 2009 and continues until revoked under ss.269SC or 269SD.
Mechanically, the Order makes those importations eligible for the tariff treatment set out in Schedule 4 (so importers pay the reduced or nil tariff specified by that item), the delegate decides eligibility, and customs enforces classification.