15(1)An occupation contract where—
(a)the allocation rules did not apply to the making of the contract, or
(b)the dwelling is made available to the contract-holder because he or she is a key worker.
(2)The allocation rules are the landlord’s rules for determining priority as between applicants in the allocation of housing accommodation, and include any rule or practice whereby the landlord provides accommodation to persons nominated by a local housing authority.
(3)Whether a contract-holder is a “key worker” is to be determined in accordance with regulations made by the Welsh Ministers.
(4)The regulations may include provision identifying key workers by reference to the nature of their employment, the identity of their employer, and the amount of their earnings.