In Australia (from the Regulations):
(1) A commercial (helicopter) pilot must not fly a helicopter as pilot in
command if the helicopter is carrying any other person and the pilot
has not satisfied whichever of the following requirements is
applicable:
(a) if the proposed flight is to be undertaken in daylight—the pilot
has, within the period of 90 days immediately before the day of
the proposed flight:
(i) carried out at least 3 circuits while flying a helicopter as
pilot in command or as pilot acting in command under
supervision, or in dual flying; or
(ii) satisfactorily completed a helicopter proficiency check; or
(iii) passed a flight test conducted for the purpose of the issue of
a helicopter pilot licence or the issue, or renewal, of a
helicopter pilot rating;
(2) For the purposes of this regulation, a person carries out a circuit while
flying a helicopter if the person:
(a) takes-off in the helicopter from an aerodrome; and
(b) flies the helicopter around the aerodrome in accordance with the
traffic pattern for the aerodrome; and
(c) lands the helicopter at the aerodrome.
(3) In this regulation:
aerodrome means a place that aircraft may land at, or take off from, in
accordance with regulation 92.
Same thing applies for night, but they must be done at night.
It also applies to PPL and ATPL.