ONLINE VERSIONMain changes in the 2013 editionThis approved document supports Part K: Protection from falling, collision and impact. It takes effect on 6 April 2013 for use in England*. The 1998 edition (incorporating 2000 and 2010 amendments) will continue to apply to work started before 6 April 2013, or to work subject to a building notice, full plans application or initial notice submitted before 6 April 2013. The main changes in this approved document are that:? The document has been updated to amalgamate Approved Document N: Glazing – safety in relation to impact, opening and cleaning, along with some overlapping guidance that resided in Approved Document M: Access to and use of buildings.? References have been updated to standards as a requisite of the harmonised standard in relation to ‘safe breaking’ and the testing methods.? References have been updated to standards as a requisite of the harmonised standard and the National Annex in relation to the resistance of loads for barriers.? Tables and diagrams have been amended and simplified. ? A new-style format is used, but there are no new technical requirements.? Key terms have been updated and an index has been introduced.* This approved document gives guidance for compliance with the Building Regulations for building work carried out in England. It also applies to building work carried out on excepted energy buildings in Wales as defined in the Welsh Ministers (Transfer of Functions) (No. 2) Order 2009.ONLINE VERSION