Preliminary Part I Section 4A worker in a business or undertaking has the meaning given by section 28AB. (2) For the purposes of this Act, refusing or failing to do an act shall be deemed to be the doing of an act and a reference to an act includes a reference to a refusal or failure to do an act. 4A Meaning of family responsibilities (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. Sex Discrimination Act 1984 Compilation No. 42 Compilation date: 11/09/2021 Authorised Version C2021C00420 registered 08/10/2021 13 Registered: 08/10/2021