17. In this Part—
“applicant” means an individual making an application for an appointment for a test or a part of a test with a view to taking the test or that part thereof himself;
“appointed person” means a person appointed by the Department to conduct theory tests under regulation 19(1)(a);
“examiner” means a person appointed by the Department to conduct practical or unitary tests;
“working day” means a day other than a Saturday, Sunday or public holiday.