(1) Subject to this section, this Act commences on the day on which it receives the Royal Assent.
(2) Part 2 of Schedule 2 and Part 5 of Schedule 4 commence, or are taken to have commenced, on 1 July 1999 .
(2A) If this Act receives the Royal Assent before 1 July 2000 , items 9A, 10A, 16A and 19A of Schedule 4 do not commence.
(2B) If this Act receives the Royal Assent on or after 1 July 2000 , items 9, 10, 16 and 19 of Schedule 4 do not commence.
(3) Items 30 to 35, 45, 46, 47, 49, 50, 59 to 73 and 75 to 79 of Schedule 4 and Part 2 of Schedule 5 are taken to have commenced on 1 July 1998 .
(4) Item 36 of Schedule 4 is taken to have commenced on 1 July 1998, immediately after the commencement of section 540A of the Social Security Act 1991 , which was inserted in that Act by item 6 of Schedule 1 to the Social Security Legislation Amendment (Youth Allowance) Act 1998 .
(5) Item 37 of Schedule 4 is taken to have commenced on 1 July 1998, immediately after the commencement of subsection 543A(2) of the Social Security Act 1991 , which was inserted in that Act by item 6 of Schedule 1 to the Social Security Legislation Amendment (Youth Allowance) Act 1998 .
(6) Item 38 of Schedule 4 is taken to have commenced on 1 July 1998, immediately after the commencement of section 550A of the Social Security Act 1991 , which was inserted in that Act by item 6 of Schedule 1 to the Social Security Legislation Amendment (Youth Allowance) Act 1998 .
(7) Items 39 and 40 of Schedule 4 are taken to have commenced on 1 July 1998, immediately after the commencement of section 552A of the Social Security Act 1991 , which was inserted in that Act by item 6 of Schedule 1 to the Social Security Legislation Amendment (Youth Allowance) Act 1998 .
(8) Items 41 to 44 and 58 of Schedule 4 are taken to have commenced on 1 July 1998 , immediately after the commencement of Schedule 1 to the Social Security Legislation Amendment (Youth Allowance Consequential and Related Measures) Act 1998 .
(9) Items 47 and 48 of Schedule 4 are taken to have commenced on 1 July 1998 , immediately after the commencement of item 199 of Schedule 9 to the Social Security Legislation Amendment (Youth Allowance Consequential and Related Measures) Act 1998 .
(10) Items 51 to 57 of Schedule 4 are taken to have commenced on 1 July 1998 , immediately after the commencement of Schedule 2 to the Social Security Legislation Amendment (Youth Allowance) Act 1998 .
(11) Item 74 of Schedule 4 is taken to have commenced on 1 July 1998 , immediately after the commencement of Schedule 7 to the Social Security Legislation Amendment (Youth Allowance Consequential and Related Measures) Act 1998 .
(12) Item 80 of Schedule 4 is taken to have commenced on 1 July 1998 , immediately after the commencement of Schedule 2 to the Social Security and Veterans' Affairs Legislation Amendment (Budget and Other Measures) Act 1998 .
(13) Item 81 of Schedule 4 is taken to have commenced on 1 July 1998 , immediately after the commencement of item 2 of Schedule 10 to the Social Security Legislation Amendment (Youth Allowance Consequential and Related Measures) Act 1998 .
(14) Part 3 of Schedule 4 is taken to have commenced on 20 September 1998 , immediately after the commencement of Schedule 3 to the Social Security and Veterans' Affairs Legislation Amendment (Budget and Other Measures) Act 1998 .
(15) Part 4 of Schedule 4 is taken to have commenced on 1 January 1999, immediately after the commencement of subsections 543A(2A) and (2B) of the Social Security Act 1991 , which were inserted in that Act by item 6 of Schedule 1 to the Social Security Legislation Amendment (Youth Allowance) Act 1998 .
(16) Part 6 of Schedule 4 commences on 1 January 2000 .
(17) Part 3 of Schedule 5 commences, or is taken to have commenced, on 1 July 1999 , immediately after the commencement of item 351 of Schedule 1 to the Taxation Laws Amendment Act (No. 3) 1999 .