35. For the purposes of this Division, a foreign medical practitioner is liable to deregistration unless the practitioner—
(a) was domiciled and unconditionally registered in Australia on 31 January 1992 and practised medicine in Australia for not less than 3 months during 1992;
(b) was unconditionally registered and practising medicine in Australia for a period of not less than 6 years, or for periods totalling not less than 6 years, at any time before 31 January 1992; or
(c) was unconditionally registered and practising medicine in Australia for a period of not less than 3 years, or for periods totalling not less than 3 years, during the period of 6 years ending on 31 January 1992.