This Tariff Concession Order applies item 50 in Part III of Schedule 4 of the Customs Tariff Act 1995 to imported goods described as "GEOGRIDS, high density polyethylene (HDPE)" (tariff classification 3926.90.90), effective 07.05.07. Mechanically, it changes the tariff treatment applied at import for those goods. Importers’ duty outcome is affected; the declaration was made under s.269P of the Customs Act 1901 and may be revoked under ss.269SC or 269SD, so Customs and importers must apply the specified concession when lodging entries.