(1) This Act may be cited as the Safety, Health and Welfare at Work Act 2005.

(2) This Act shall come into operation on such day or days as may be appointed therefor by order or orders of the Minister either generally or with reference to any particular purpose or provision, and different days may be so appointed for different purposes and different provisions of this Act and an order under this subsection may provide for the commencement of section 4(2) upon different days as respects different existing enactments and different provisions of existing enactments.