Part I DESCRIPTION OF BOILERS ETC. Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: sch 3 am by Boiler (Efficiency) 2006 reg 2 1Paragraph 1 2Paragraph 2 3Paragraph 3 4Paragraph 4 5Paragraph 5 6Paragraph 6 7Paragraph 7 8Paragraph 8 Part I