Section 39B: inserted, on 18 October 1978, by section 9(1) of the Social Security Amendment Act 1978 (1978 No 58).
Section 39B heading: amended, on 1 September 1998, by section 12(4)(a) of the Social Security Amendment Act 1998 (1998 No 19).
Section 39B: amended, on 1 September 1998, by section 12(4)(a) of the Social Security Amendment Act 1998 (1998 No 19).