(1) In this Act, family responsibilities , in relation to a person, means responsibilities of the person to care for or support:
(a) a dependent child of the person; or
(b) any other immediate family member who is in need of care and support.
(2) In this section:
"child" : without limiting who is a child of a person for the purposes of this section, each of the following is the child of a person:
(a) an adopted child, stepchild or exnuptial child of the person;
(b) someone who is a child of the person within the meaning of the Family Law Act 1975 .
"dependent child" means a child who is wholly or substantially dependent on the person.
"immediate family member" includes:
(a) a spouse of the person; and
(b) an adult child, parent, grandparent, grandchild or sibling of the person or of a spouse of the person.
"parent" : without limiting who is a parent of a person for the purposes of this section, someone is the parent of a person if the person is his or her child because of paragraph (b) of the definition of child in this subsection.
"spouse" includes a former spouse, a de facto partner and a former de facto partner.
"stepchild" : without limiting who is a stepchild of a person for the purposes of this section, someone is the stepchild of the person if he or she would be the person's stepchild except that the person is not legally married to the partner.
(3) For the purposes of this section, if one person is the child of another person because of paragraph (b) of the definition of child in subsection (2), relationships traced to or through the person are to be determined on the basis that the person is the child of the other person.