The visa application must include documentary evidence of their relationship to you. See:
including family members in your application .
Your family members must be able to show that they meet
Your sponsor must agree in writing to sponsor your family members.
Members of your family unit can apply for this visa as either a combined applicant (included in your application) or as a subsequent applicant (at a later time, separate from your application). Applications can be made using
ImmiAccount. Subsequent applicants should apply using the Temporary Activity, International Relations or Training Visa (Subsequent Entrant)(403,407,408) form in