This Order declares that drawing instruments — specifically set squares and protractors — classified under tariff heading 9017.20.10 qualify for the Schedule 4, Part III, item 50 concession. It takes effect from 14 October 2009 and remains in force until revoked under sections 269SC or 269SD of the Customs Act 1901. Importers of these items are affected: correct tariff classification determines whether the Schedule 4 concession applies, and the declaration was made by a delegate of the CEO under section 269P.