A person who supplies accommodation for the person’s workers may provide accommodation of different standards to different workers if—
(a) it is not reasonable to expect the person to supply accommodation of the same standard for all workers; and
(b) the standard of the accommodation supplied to each worker is determined having regard to—(i) the number of people in the worker’s household; or(ii) the class of work performed, or the nature of the position held, by the worker.