47.- 1. Parliament may alter any of the provisions of this Constitution or of the Supreme Court Order in the manner specified in the following provisions of this section.

2. A bill to alter this constitution or the Supreme Court Order shall not be regarded as being passed by the House unless on its final reading in the House the bill is supported by the votes of not less than two-thirds of all the members of the House.

3. An amendment made by the Senate to such a bill as is referred to in subsection (2) of this section that has been passed by the House shall not be regarded as being agreed to by the House for the purpose of section 55 of this Constitution unless such agreement is signified by resolution supported by the votes of not less than two-thirds of all the members of the House.

4. For the purposes of section 55(4) of this Constitution, an amendment of a bill to alter this Constitution or the Supreme Court Order shall not be suggested to the Senate by the House unless a resolution so to suggest the amendment has been supported by the votes of not less than two-thirds of all the members of the House.

5. A bill to alter this section, schedule 1 to this constitution or any of the provisions of this Constitution specified in Part I of that schedule or any of the provisions of the Supreme Court Order specified in Part II of that schedule shall not be submitted to the Governor-General for his assent unless-

a. there has been an interval of not less than ninety days between the introduction of the bill in the House and the beginning of the proceedings in the House on the second reading of the bill in that House;

b. after it has been passed by both Houses of Parliament or, in the case of a bill to which section 55 of this Constitution applies, after its rejection by the Senate for the second time; and

c. the bill has been approved on a referendum, held in accordance with such provisions as may be made in that behalf by Parliament, by not less than two- thirds of all the votes validly cast on that referendum.

6. Every person who, at the time when the referendum is held, would be entitled to vote in elections of members of the House shall be entitled to vote on referendum held for the purposes of this section in accordance with such procedures as may be prescribed by parliament for the purposes of the referendum and no other person shall be entitled so to vote.

7. The conduct of any referendum for the purposes of subsection (5) of this section shall be under the general supervision of the Supervisor of Elections and shall be in accordance with such provisions as may be made in that behalf by Parliament.

8. a. A bill to alter this Constitution or the Supreme Court Order shall not be submitted to the Governor-General for his assent unless it is accompanied by a certificate under the hand of the Speaker (or, if the Speaker is for any reason unable to exercise the functions of his office, the Deputy Speaker) that the provisions of subsection (2), (3) or (4), as the case may be, of this section have been complied with and, where a referendum has been held, by a certificate of the Supervisor of Elections stating the results of the referendum.

b. The certificate of the Speaker or, as the case may be, the Deputy Speaker under this subsection (2), (3) or (4) of this section have been complied with and shall not be enquired into in any court of law.