Hong Kong Regulations

AIRPORT AUTHORITY BYLAW - SECT 16

Smoking and non-smoking area

(1) No person shall smoke or take with him a lighted cigarette, cigar or pipe
in any part of the Restricted Area, the PTB, the GTC, the
public transport facilities or the public car parks except in an area
designated by the Authority as a smoking area.

(2) An Authorized Person or an Authorized Officer may, in respect of any
person who is reasonably suspected of having committed or attempting to commit
a breach of subsection (1)-

   (a)  require the person to extinguish the lighted cigarette, cigar or pipe;
        and

   (b)  where the person fails to extinguish the lighted cigarette, cigar or
        pipe, require him to leave the area.