Regulation 4

operating crew required to perform duties on an aircraft or travelling on an aircraft in order to commence duties on an aircraft from another destination but not employees of an aircraft operator travelling on its aircraft other than as part of the operating crew;

any passenger on —

a military aircraft;

a foreign diplomatic aircraft engaged on diplomatic or consular missions to Singapore;

an aircraft used for Government ceremonial purposes; or

an aircraft which is owned or operated by or on behalf of any person approved by the Chief Executive, under the Air Navigation Order (Cap. 6, O 2), to provide any course of flight training or instruction and that is operated for such purpose;

a passenger who, while on a flight that has begun, arrives in Singapore by aircraft or does not take off from Singapore due to unforeseen circumstances, and leaves Singapore on that flight, or another flight that is provided by the aircraft operator in lieu of that flight, as soon as is reasonably practicable to do so after those circumstances no longer exist:Examples of unforeseen circumstances(a)a medical emergency.(b)a technical fault in the aircraft.(c)inclement weather.(d)refuelling.(e)closure of the airport in a place outside Singapore at which the aircraft was originally scheduled to arrive.(d)a transfer passenger or transit passenger;

an infant below 2 years of age;

any serviceman of the Singapore Armed Forces, whether uniformed or non‑uniformed and whether or not in regular service or national service, travelling for military purposes on an aircraft that is not a military aircraft;

any person —

who is accredited as a diplomatic or consular representative of the government of any foreign country, or is a staff member of any such diplomatic or consular representative;

who holds a valid diplomatic passport, official passport, service passport or public affairs passport issued by the government of that foreign country; or

who is the subject of a request by the Ministry of Foreign Affairs in Singapore to be treated as a non‑chargeable passenger;

any head of state or head of government of a foreign country who is recognised by Singapore (whether or not a guest of the Government) and whom the Ministry of Foreign Affairs in Singapore requests to be treated as a non‑chargeable passenger;

any person whom the Ministry of Foreign Affairs in Singapore recognises as a representative of an international organisation (whether or not a guest of the Government) and whom that Ministry requests to be treated as a non‑chargeable passenger;

every member of the delegation travelling with a person referred to in sub‑paragraph (g), (h) or (i);

any employee or volunteer of an association, authority, body or institution (whether incorporated or unincorporated) lawfully established for charitable objects travelling to any place outside Singapore —

to combat the effects of any emergency at that place;

to provide emergency medical or other assistance for casualties or survivors in that place;

to reduce further damage in that place; or

to support emergency affected communities in the reconstruction and restoration of the physical infrastructure, the environment and community, psychosocial and economic well‑being;

any employee or volunteer of an association, authority, body or institution (whether incorporated or unincorporated) lawfully established for charitable objects accompanying any beneficiary thereof, and that beneficiary, travelling on a flight originating from and ending in Singapore without landing in any place outside Singapore.

a storm, a volcanic eruption, an earthquake, a flood, a tsunami or an occurrence of a similar kind;

a fire;

a plague or an epidemic;

a road, rail or an air crash, or a shipping or other accident;

a war;

an act of terrorism.