8After section 7A of that Act there shall be inserted the following section—
(1)Subject to the provisions of this Act, any decision made in accordance with the foregoing provisions of this Act shall be final.
(2)If and to the extent that regulations so provide, any finding of fact or other determination embodied in or necessary to such a decision, or on which such a decision is based, shall be conclusive for the purposes of—
(a)further such decisions;
(b)decisions made in accordance with sections 8 to 16 of the Social Security Act 1998, or with regulations under section 11 of that Act; and
(c)decisions made under the [1991 c. 48.] Child Support Act 1991.”