(1)The Minister may, with the consent of the Treasury, make reciprocal arrangements with the appropriate Northern Irish authority for coordinating the two systems of insurance provided for respectively by this Act and any legislation for similar purposes passed by the Parliament of Northern Ireland so as to secure that they operate, to such extent as may be provided by the arrangements, as a single system.
(2)There shall be a Joint Authority (hereafter in this Act referred to as " the Joint Authority ") consisting of the Minister and of the appropriate Northern Irish authority, and the Joint Authority shall have power, in connection with the arrangements aforesaid—
(a)to make any necessary financial adjustments between the National Insurance Fund and any fund established under the Northern Irish legislation ; and
(b)to discharge such other functions for the co-ordination of the said two systems as may be provided by the arrangements.
(3)The provisions of Schedule 10 to this Act shall have effect with respect to the constitution of the Joint Authority and other matters relating thereto.
(4)The Minister may make regulations for giving effect in Great Britain to any such arrangements, and any such regulations may provide—
(a)that this Act shall have effect in relation to persons affected by the arrangements subject to such modifications and adaptations as may be specified in the regulations, including provision—
(i)for securing that acts, omissions and events having any effect for the purposes of the Northern Irish legislation shall have a corresponding effect for the purposes of this Act (but not so as to confer a right to double benefit);
(ii)for determining, in cases where rights accrue both under this Act and under the Northern Irish legislation, which of those rights shall be available to the person concerned ;
(iii)for making any provisions as to administration and enforcement contained in this Act or in any regulations and the provisions of section 118(1)(f) of the [1913 c. 20.] Bankruptcy (Scotland) Act 1913, section 33(1)(f) of the [1914 c. 59.] Bankruptcy Act 1914 and section 319(1)(e) of the [1948 c. 38.] Companies Act 1948 applicable also for the purposes of the Northern Irish legislation;
(b)that the Joint Authority shall be substituted for the Minister in relation to the making of any regulations (other than regulations for the purposes of this paragraph) or orders.
(5)In connection with any such legislation as is mentioned in subsection (1) of this section, any limitation of the powers of the Parliament of Northern Ireland imposed by the [1920 c. 67.] Government of Ireland Act 1920 shall not apply in so far as it would preclude that Parliament from enacting a provision corresponding to some provision of this Act, other than section 99 thereof.
(6)Regulations made by the Joint Authority may provide for applying the said section 99 for the purposes of the Northern Irish legislation, with or without modifications, and for determining—
(a)the persons who, being employed persons in respect of their membership of Her Majesty's forces, are to be treated as belonging to Northern Ireland ;
(b)the sums paid for any period on account of contributions as employed persons and of employers' contributions by and in respect of those persons;
and the sums so determined shall be treated as paid on account of contributions under the Northern Irish legislation, and not on account of contributions under this Act, for the purposes—
(i)of estimating the contributions to be paid under this Act out of moneys provided by Parliament;
(ii)of making adjustments under subsection (2)(a) of this section.
(1)For the purpose of giving effect to any agreement with the government of any country outside the United Kingdom providing for reciprocity in matters relating to payments in respect of interruption of employment by unemployment, sickness or otherwise, or payments in respect of the confinement of women, widowhood, orphanhood, retirement, old age or death, it shall be lawful for Her Majesty by Order in Council to make provision for modifying or adapting this Act in its application to cases affected by the agreement.
(2)The modifications of this Act which may be made by virtue of the foregoing subsection shall include provision—
(a)for securing that acts, omissions and events having any effect for the purposes of the law of the country in respect of which the agreement is made shall have a corresponding effect for the purposes of this Act (but not so as to confer a right to double benefit);
(b)for determining, in cases where rights accrue both under this Act and under the law of the said country, which of those rights shall be available to the person concerned;
(c)for making any such provisions as are referred to in section 104(4)(a)(iii) of this Act applicable also for the purposes of the law of the said country;
(d)for making any necessary financial adjustments by payments into or out of the National Insurance Fund.