These Regulations commence as follows: (a) on the day after they are registered — regulations 1 to 3; (b) on the later of: (i) 1 July 2007; and (ii) the commencement of the Australian Centre for International Agricultural Research Amendment Act 2007; Schedule 1; (c) on the later of: (i) 1 July 2007; and (ii) the commencement of Schedules 1 and 2 to the Agricultural and Veterinary Chemicals (Administration) Amendment Act 2007; Schedule 2; (d) on the later of: (i) 1 July 2007; and (ii) the commencement of the Great Barrier Reef Marine Park Amendment Act 2007; Schedule 3.