Work Health and Safety and Other Legislation Amendment Act 2017 pt 1, pt 2 divs 1–2, pt 3 divs 1–2 comm on date of assent ss 28–36, 38, 41, 46, 47, 50 (to the extent it ins pt 16, div 5 hdg, ss 312, 319, 320), 52, 53(1) and 53(2) (to the extent it ins defs dispute, relevant union and WHS matter) comm 13 November 2017 (2017 SL No. 225) pt 2 div 3, pt 3 div 3 comm 1 July 2018 (see s 2(1)) ss 37, 39–40, 42–45, 48–49, 50 (to the extent it ins ss 313–318), 51 and 53 (2) (to the extent it ins defs information and WHS prosecutor) comm 18 March 2019 (2019 SL No. 23) (proposed commencement 24 October 2019 (automatic commencement under AIA s 15DA (2) (2018 SL No. 157))) rep 19 March 2019 (see AIA s 22C) Bill (Introduction) Explanatory Note Bill (3rd Reading) Explanatory Note Act 2017, No. 38