(1)    The Secretary of State may not impose any work-related requirement on a claimant falling within this section.

(2)    A claimant falls within this section if—

(a)    the claimant has limited capability for work and work-related activity,

(b)    the claimant has regular and substantial caring responsibilities for a severely disabled person,

(c)    the claimant is the responsible carer for a child under the age of 1, or

(d)    the claimant is of a prescribed description.

(3)    Regulations under subsection (2)(d) may in particular make provision by reference to one or more of the following—

(a)    hours worked;

(b)    earnings or income;

(c)    the amount of universal credit payable.

(4)    Regulations under subsection (3) may—

(a)    in the case of a claimant who is a member of the couple, make provision by reference to the claimant alone or by reference to the members of the couple together;

(b)    make provision for estimating or calculating any matter for the purpose of the regulations.

(5)    Where a claimant falls within this section, any work-related requirement previously applying to the claimant ceases to have effect.

(6)    In this Part “responsible carer”, in relation to a child means—

(a)    a single person who is responsible for the child, or

(b)    a person who is a member of a couple where—

(i)    the person or the other member of the couple is responsible for the child, and

(ii)    the person has been nominated by the couple jointly as responsible for the child.