Section 4

the display of any national emblem of the state of which he is a national by any of the following persons:

any person duly accredited as a diplomatic representative of a foreign power or as a consular representative of a foreign power to Singapore to whom an exequatur or provisional or other authorisation has been granted by the Government;

any person in the service of a Commonwealth Government or the government of any British dependency or possession or of the Republic of Ireland and officially recognised as representing that government in Singapore;

any person upon whom the immunities and privileges referred to in Part 2 or Part 3 of the Second Schedule to the International Organisations (Immunities and Privileges) Act 1948 have been conferred under that Act; or

the display of any national emblem on any ship or aircraft.