“unmanned aircraft” means an aircraft that may be flown or used without any individual on board the aircraft to operate it, and excludes a balloon or kite; [Act 16 of 2015 wef 01/06/2015] “unmanned aircraft system” means an unmanned aircraft and its associated elements; [Act 16 of 2015 wef 01/06/2015] “vehicle” includes an aircraft and a boat; “X-ray machine” means a device through which a person’s belongings are passed and X-rayed. Declaration of special event by Commissioner 21.—(1) Subject to subsections (2) and (3) and section 21A, the Commissioner may declare an event to be a special event for the purposes of this Part. (2) In deciding whether to make a declaration and the scope of the declaration, the Commissioner is to have regard to — (a) the size of the event; (b) the number and prominence of persons who are likely to attend the event; (c) the likely media coverage of the event; (d) the likely contribution that the event will make to Singapore; (e) the commercial arrangements for the event; (f) the event management experience and expertise of the event organiser; (g) the factors affecting the operational organisation of the event, including measures taken or to be taken by the event organiser in relation to the planning of the event, such as — (i) preparation of traffic and transport management plans; (ii) emergency management plans; (iii) security plans and consultation with police and emergency services; and (iv) crowd management; (h) Singapore’s obligations for holding the event; and (i) any other relevant factor. Singapore Statutes Online Current version as at 01 Oct 2018 PDF created date on: 01 Oct 2018