(1) Except in accordance with this section:
(a) persons who are already legally married to each other shall not, in Australia or under Part V, go through a form or ceremony of marriage with each other; and
(b) a person who is authorised by this Act to solemnise marriages shall not purport to solemnise a marriage in Australia or under Part V between persons who inform the first - mentioned person that they are already legally married to each other or whom the first - mentioned person knows or has reason to believe to be already legally married to each other.
(a) 2 persons have gone through a form or ceremony of marriage with each other, whether before or after the commencement of this Act; and
(i) whether those persons are legally married to each other;
(ii) where the form or ceremony of marriage took place outside Australia , whether the marriage would be recognised as valid by a court in Australia ; or
(iii) whether their marriage could be proved in legal proceedings;
those persons may, subject to this section, go through a form or ceremony of marriage with each other in accordance with Division 2 of Part IV or under Part V as if they had not previously gone through a form or ceremony of marriage with each other.
(3) Where 2 persons wish to go through a form or ceremony of marriage with each other in pursuance of subsection ( 2), they shall furnish to the person by whom, or in whose presence, the form or ceremony is to take place or be performed:
(a) a statutory declaration by them stating that they have previously gone through a form or ceremony of marriage with each other and specifying the date on which, the place at which and the circumstances in which they went through that form or ceremony; and
(b) a certificate by a barrister or solicitor, being a certificate endorsed on the statutory declaration, that, on the facts stated in the declaration, there is, in his or her opinion, a doubt as to one of the matters specified in paragraph ( 2)(b).
(4) The person by whom or in whose presence a form or ceremony of marriage takes place or is performed in pursuance of subsection ( 2) shall make an endorsement in accordance with the regulations on each certificate issued in respect of it.
(4A) A marriage which takes place after the commencement of this subsection in pursuance of subsection ( 2) is not invalid by reason of any failure to comply with the requirements of subsection ( 3) or (4).
(5) Nothing in this Act shall be taken to prevent 2 persons who are already legally married to each other from going through a religious ceremony of marriage with each other in Australia where those persons have:
(a) produced to the person by whom or in whose presence the ceremony is to be performed a certificate of their existing marriage; and
(b) furnished to that person a statement in writing, signed by them and witnessed by that person, that:
(i) they have previously gone through a form or ceremony of marriage with each other;
(ii) they are the parties mentioned in the certificate of marriage produced with the statement; and
(iii) they have no reason to believe that they are not legally married to each other or, if their marriage took place outside Australia , they have no reason to believe that it would not be recognised as valid in Australia .
(6) The provisions of sections 42, 44, 50 and 51 do not apply to or in relation to a religious ceremony of marriage in accordance with subsection ( 5) and the person by whom, or in whose presence, the ceremony is performed shall not:
(a) prepare or issue in respect of it any certificate of marriage under or referring to this Act; or
(b) issue any other document to the parties in respect of the ceremony unless the parties are described in the document as being already legally married to each other.
(7) A person who is not an authorised celebrant does not commit
an offence against section 101 by reason only of his or her having
performed a religious ceremony of marriage between parties who have complied
with the requirements of subsection ( 5) of this section.