In these regulations administrative decision means a decision specified in column 2 of a table in Schedule 1 ;applicant means a person who makes an application;application means an application under Part 2 for the review of an administrative decision;decision-making authority , in relation to an administrative decision, means whichever of the following authorities made the decision:(a) the Registrar;(b) the Commission;notice means notice in writing;reviewing authority , in relation to an application, means whichever of the following authorities is required by regulation 6(1) to consider the application:(a) the Secretary of the Department;(b) the Commission.