The holder of a contractor licence must ensure that, when residential building work, or specialist work, for which the contractor licence authorises the holder to contract is being done by or on behalf of the holder, the work is done--
(a) by the holder of an endorsed contractor licence, or of a supervisor or tradesperson certificate, authorising its holder to do the work, or
(b) under the supervision, and subject to the direction, of the holder of such an endorsed contractor licence or supervisor certificate, but only if the work is done so as not to contravene a requirement made by or under this or any other Act.
: Maximum penalty--1,000 penalty units in the case of a corporation and 200 penalty units in any other case.