3B.—(1) A Singapore visa may be granted subject to any of the following general conditions as to validity where specified therein:
(a)
the Singapore visa shall be valid to enable the holder thereof to travel to and enter Singapore on a single occasion within a specified period;
(b)
the Singapore visa shall be valid to enable the holder thereof to travel to and enter Singapore on a restricted number of occasions within a specified period; or
(c)
the Singapore visa shall be valid to enable the holder thereof to travel to and enter Singapore on an unrestricted number of occasions within a specified period.
(2) A Singapore visa shall cease to be valid —
(a)
at the end of the day specified in the Singapore visa;
(b)
where the Singapore visa is valid for travel to and entry into Singapore on a single occasion during a specified period, on the completion of that journey;
(c)
where the holder of the Singapore visa is granted any pass under these Regulations, when that pass is cancelled in accordance with these Regulations; or
(d)
where the Singapore visa is cancelled in accordance with these Regulations.
(3) A Singapore visa to travel to and enter Singapore during or within a period is not permission for the holder to travel to Singapore, or to enter Singapore, outside that period.