Paragraph 9
The provisions of Part V of the Taxes Management Act 1970 (appeals, etc.) shall apply with the necessary modifications in relation to Class 4 contributions as they apply in relation to income tax ; but nothing in the Income Tax Acts shall apply with respect to the determination of any question arising—
(a)
under section 9(7) of this Act or section 9(4) of the 1975 c. 15.Social Security (Northern Ireland) Act 1975 as to whether by regulations under that subsection a person is excepted from liability for Class 4 contributions, or his liability is deferred; or
(b)
under regulations made by virtue of section 9(9) or 10 of this Act or section 9(6) or 10 of the Social Security (Northern Ireland) Act 1975.