Part CLASS IV Temporary buildings Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: Sch. 2 para. 13A words inserted by SI 2009/2397 art. 2(4) (as amended) by Building and Approved Inspectors 2010 reg. 24(a) Sch. 2 para. 13B words inserted by SI 2009/2397 art. 2(4) (as amended) by Building and Approved Inspectors 2010 reg. 24(b) Sch. 2 Class 1 para. 1 substituted by Manufacture and Storage of Explosives 2005 Sch. 5 para. 43 A building which is not intended to remain where it is erected for more than 28 days. Part CLASS IV