The legislative context
13 Relevantly, s 30 of the Act provided that a visa to remain in Australia could be either permanent, which gave the holder the right to remain indefinitely, or temporary, which gave the holder the right to remain during a specified period or until either a specified event occurred or the holder had a specified status.
14 Section 31 required that there be prescribed classes of visas, as well as other visas with which the Act dealt. A medical treatment visa is one of the prescribed classes under the Regulations. A substantive visa, as defined in s 5(1) of the Act, is a visa other than a bridging visa, a criminal justice visa or an enforcement visa. Subclass 602 in Sch 2 of the Regulations is headed "Medical Treatment". The criteria set out in subclass 602 were criteria that had to be met at the time that a decision was made on an application for the visa. Thus, the criterion prescribed in cl 602.211 provided that the applicant sought to visit, or remain in, Australia temporarily for the purposes of medical treatment or for related purposes. Relevantly, the criteria prescribed in cll 602.212(1) and (6) and 602.213(3), (4) and (5) were:
602.212
(1) The requirements in one of subclauses (2) to (8) are met.
Unfit to depart
(6) All of the following requirements are met:
(a) the applicant is in Australia;
(b) the applicant has turned 50;
(c) the applicant has applied for a permanent visa while in Australia;
(d) the applicant appears to have met all the criteria for the grant of that visa, other than public interest criteria related to health;
(e) the applicant has been refused the visa;
(f) the applicant is medically unfit to depart Australia due to a permanent or deteriorating disease or health condition, as evidenced by a written statement to that effect from a Medical Officer of the Commonwealth.
602.213
(3) Subclauses (4) and (5) apply if:
(a) the applicant was in Australia at the time of application; and
(b) the applicant did not hold a substantive temporary visa at that time; and
(c) the requirements described in subclause 602.212(6) are not met in relation to the applicant.
(4) The last substantive temporary visa held by the applicant was not:
(a) a Subclass 426 (Domestic Worker (Temporary) - Diplomatic or Consular) visa; or
(b) a Subclass 403 (Temporary Work (International Relations)) visa in the Domestic Worker (Diplomatic or Consular) stream.
(5) The applicant satisfies Schedule 3 criteria 3001, 3003, 3004 and 3005. (emphasis added)
15 In Mr Ahmad's case, cl 602.213 (4) was amended by 16 December 2016 and read:
The last substantive temporary visa held by the applicant was not a Subclass 403 (Temporary Work (International Relations)) visa in the Domestic Worker (Diplomatic or Consular) stream.
16 Relevantly, item 3001(1) and (2)(c) provided:
3001
(1) The application is validly made within 28 days after the relevant day (within the meaning of subclause (2)).
(2) For the purposes of subclause (1)…, the relevant day, in relation to an applicant, is:
...
(c) if the applicant:
(i) ceased to hold a substantive … visa on or after 1 September 1994; or
…whichever is the later of:
(iii) the last day when the applicant held a substantive … visa.
17 As noted above, the last substantive temporary visas of Mr Ahmad and Ms Zhao lapsed in 2012 and 2013 respectively. Both appellants fell within the criterion in cl 602.213(3)(c) because each was under 50 years old and so could not meet the requirements of cl 602.212(6)(b). It was common ground that neither Mr Ahmad nor Ms Zhao held a visa of the kind described in 602.213(4). Accordingly, item 3001 in Sch 3 applied to the circumstances of each of Ms Zhao and Mr Ahmad. Its effect was that for their applications to have been valid they had to have applied for a medical treatment visa within 28 days after the last day on which he or she had held a substantive visa.
18 As is clear from the recitation of the provisions and the circumstances of each of Ms Zhao and Mr Ahmad, neither could satisfy item 3001(1). It follows that they could not have met the requirements of cl 602.213(5) so as to be entitled to a grant of a medical treatment visa.