The latest version is version 2.0. ([https://www.openchargealliance.org/uploads/files/OCA-Overview-OCPP-versions.pdf OCPP versions])
The protocol iswas andesigned initiativein 2009 on request of the ELaadNL foundation<ref>{{cite web|url=https://www.elaad.nl/ |title=ElaadNL |publisher=ElaadNL |date= |accessdate=2019-05-23}}</ref> in the [[Netherlands]]. Michel Bayings was the projectleader who also contributed on the business and functional parts. The technical design and specs were developed by Franc Buve, Patrick Rademakers, and several others from LogicaCMG. Its aim was to create an open application protocol which allows EV charging stations and central management systems from different vendors to communicate with each other. It is in use by a large number of vendors of EV charging stations and central management systems all over the world.<ref>{{cite web |date= |title=Open Charge Alliance Participants |url=https://www.openchargealliance.org/participants/ |accessdate= |publisher=}}</ref>
