(1) A person (P) has a disability if—
(a) P has a physical or mental impairment, and
(b) the impairment has a substantial and long-term adverse effect on P's ability to carry out normal day-to-day activities.
(2) A reference to a disabled person is a reference to a person who has a disability.
(3) In relation to the protected characteristic of disability—
(a) a reference to a person who has a particular protected characteristic is a reference to a person who has a particular disability;
(b) a reference to persons who share a protected characteristic is a reference to persons who have the same disability.
(4) This Act (except Part 12 and section 190) applies in relation to a person who has had a disability as it applies in relation to a person who has the disability; accordingly (except in that Part and that section)—
(a) a reference (however expressed) to a person who has a disability includes a reference to a person who has had the disability, and
(b) a reference (however expressed) to a person who does not have a disability includes a reference to a person who has not had the disability.
(5) A Minister of the Crown may issue guidance about matters to be taken into account in deciding any question for the purposes of subsection (1).
(6) Schedule 1 (disability: supplementary provision) has effect.