Commonwealth Consolidated Regulations Commonwealth Consolidated RegulationsThe repeal and substitution of subregulation 23(2) made by Schedule 7 to the amending regulations, the amendment of paragraph 25(3)(c) made by that Schedule, subregulations 25(4) and (5) as added by that Schedule and the amendments of paragraph 27(2)(a) and of regulations 28, 29 and 30 made by that Schedule apply in relation to samples taken or delivered on or after 1 January 2020.