Chapter 2 applies to work equipment not covered by the Regulations of 20 May 2009 No 544 on machinery and that is used or is expected to be used in undertakings that fall within the scope of the Working Environment Act.Chapter 3 applies to tractors that were delivered before 1 September 1964.Chapter 4 applies to scaffolds, ladders and structures on roofs and facades. The chapter does not apply to offshore petroleum activities and activities on onshore facilities as mentioned in Section 6(e) of the Framework Regulations.Chapter 5 applies to simple pressure vessels.