This pack contains the following IEC 61970 International Standards that are needed to cover the Common Grid Model Exchange Specification (CGMES):

IEC 61970-301:2020
IEC 61970-302:2018
IEC 61970-452:2017
IEC 61970-453:2014+AMD1:2018 CSV
IEC 61970-456:2018
IEC 61970-501:2006
IEC 61970-552:2016
IEC TS 61970-600-1:2017
IEC TS 61970-600-2:2017