If an authorised person enters premises under this Part for the purpose of making an inspection and as a result of that inspection, under a power conferred on the plumbing regulator, the regulator requires any work to be carried out on or in the premises, the plumbing regulator may recover the reasonable costs of the entry and inspection from--
(a) the owner or occupier of the premises, or
(b) the responsible person for the plumbing and drainage work that is the subject of the inspection.