(1) Subject to this Act and to regulations made under this Act, a payment (in this Act referred to as "one-parent family payment") shall be payable to any of the following persons who has not attained pensionable age:

(a) a qualified parent;

(b) a person to whom section 173A or 173B applies;

(c) a person to whom section 178A(6), 178A(7) or 178A(8) applies.

(2) A one-parent family payment payable to a person shall, subject to this Act, continue to be payable unless the person marries, remarries, enters into a civil partnership or enters into a new civil partnership, and in such a case the one-parent family payment shall cease as and from the date of marriage or remarriage or the date of entry into a civil partnership or new civil partnership, as the case may be.

(3) [deleted]

(4)[deleted]