IEC 60601-1:2005+A1:2012+A2:2020 contains requirements concerning basic safety and essential performance that are generally applicable to medical electrical equipment. For certain types of medical electrical equipment, these requirements are either supplemented or modified by the special requirements of a collateral or particular standard. Where particular standards exist, this standard should not be used alone. This document includes the contents of the corrigenda 1 (2006) and 2 (2007), the contents of the corrigendum to Amendment 1 (2014), as well as the interpretation sheets 1 (2008), 2 (2009), 3 (2013) and interpretation sheet to amendment 1 (2021). This consolidated version consists of the third edition (2005), its amendment 1 (2012) and its amendment 2 (2020). Therefore, no need to order amendments in addition to this publication.