Mechanically, the Order declares that imported "under bridge inspection platform" vehicles meeting listed technical specifications (vertical lift ≥8 m, horizontal extension ≥13.5 m, suspension airbags, ≥4 stabilising wheels, 180° platform rotation) are eligible for the Part III Schedule 4 tariff concession under the Customs Tariff Act 1995, effective 17 March 2006 until revoked (s.269P; revocation under ss 269SC–269SD). It affects importers of those specialised vehicles (reducing their tariff liability) and the Commonwealth budget (foregone duty), with eligibility verified by the listed physical criteria and tariff classification 8705.90.00.