(1) A person may discriminate if the discrimination is necessary to comply with, or is authorised by, a provision of—
(a) an Act, other than this Act; or
(b) an enactment, other than an enactment under this Act.
(2) For the purpose of subsection (1), it is not necessary that the provision refer to discrimination, as long as it authorises or necessitates the relevant conduct that would otherwise constitute discrimination.
(3) Sections 50(3) and 63(1) prevail over this section to the extent of any inconsistency between them.