Liaison Agreement Between CharIN e.V. and ISO Joint Working Group

The ISO Committee has officially approved CharIN’s proposal to establish a liaison with ISO TC22 SC31.

For the past five years, CharIN e.V. has promoted the Combined Charging System (CCS) as the global technology for charging all battery powered electric vehicles. The CCS charging system includes the ISO 15118 communication protocol, an ISO/TC22/SC31/JWG1 standard.


With more than 180 active members across the EV charging value chain, the CharIN community has become the largest user group of ISO/TC22/SC31 standards. Together, CharIN’s members have a wealth of expertise and experience in implementing this technology.


To put the work of CharIN on a cooperative level the developed guidelines and recommendations could directly be considered in the ISO/TC22/SC31/JWG1. This increases collaboration with the ISO committee to further develop ISO 15118. Recently, the ISO Committee approved CharIN’s proposal for liaison with the Joint Working Group.


Moving forward, CharIN and the ISO committee will notify one another about planned activities in their respective organizations. Additionally, the two organizations will regularly exchange technical documents and invite each other to comment.



CharIN e.V. is an international association of vehicle manufacturers, energy providers and original equipment manufacturers with one common goal: To establish the Combined Charging System (CCS) as the global standard for charging all types of battery powered electric vehicles. CharIN has over 180 members along the whole value chain from all over the world. It is open to all interested parties and has offices in Germany, Hong Kong, South Korea, India, Japan, China and the US.