IEC 63584-210:2025

Open Charge Point Protocol 2.1

IEC 63584-210:2025 is the OCPP version 2.1. Version 2.1 is an extension of OCPP 2.0.1. OCPP 2.1 has its own JSON schemas, but the schemas are OCPP 2.0.1 schemas that have been extended with optional fields that are used by OCPP 2.1 functionality. With the minor exceptions mentioned below, all application logic developed for OCPP 2.0.1 will continue to work in OCPP 2.1 without any changes. The new features of OCPP 2.1, of course, require new application logic.

General Information

• Status: Published
• Publication Date: 26-Nov-2025
• ICS: 43.120 - Electric road vehicles
• Technical Committee: TC 69 - Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks

Standards Content (Sample)

IEC 63584-210 ®
Edition 1.0 2025-11
INTERNATIONAL
STANDARD
Open Charge Point Protocol 2.1

ICS 43.120  ISBN 978-2-8327-0890-3

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Open Charge Point Protocol 2.1

FOREWORD
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IEC 63584-210 has been prepared by IEC technical committee 69: Electrical power/energy
transfer systems for electrically propelled road vehicles and industrial trucks. It is an
International Standard.
It is based on Open Charge Point Protocol 2.1 and was submitted as a Fast -Track document.
The text of this International Standard is based on the following documents:
Draft Report on voting
69/1052/CDV 69/1094/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
The structure and editorial rules used in this publication reflect the practice of the organization
which submitted it.
This document was developed in accordance with ISO/IEC Directives, Part 1 and ISO/IEC
Directives, IEC Supplement, available at www.iec.ch/members_experts/refdocs. The main
document types developed by IEC are described in greater detail at www.iec.ch/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
OCPP 2.1
Part 0 - Introduction
Edition 1, 2025-01-23
Table of Contents
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
Version History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
1.1. OCPP version 2.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
1.2. Terms and abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
1.3. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
2. New functionality in OCPP 2.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
3. OCPP 2.1 Documentation Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
3.1. Overview of Specification Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
3.2. Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
3.3. All Functional Blocks and use cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
4. Basic implementation of OCPP 2.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

Disclaimer
The OCA hereby grants to IEC a license to fully exploit the OCPP for commercial and non-commercial purposes and to
permit IEC National Committees to nationally adopt and translate OCPP under the applicable IEC policies.
Notwithstanding the foregoing, IEC is not entitled to share adapted, altered, transformed or otherwise modified versions
of the OCPP. Such license includes the right of IEC to grant sub-licenses to its members for purposes of national
adoption, distribution and reproduction in any format including electronic for purposes of distribution on a commercial or
non-commercial basis.
1/15 Part 0 - Introduction
Version History
Version Date Description
2.1 Edition 1 2025-01-23 OCPP 2.1 Edition 1
2/15 Part 0 - Introduction
Chapter 1. Introduction
Electric Vehicles (EVs) are becoming the new standard for mobility all over the world. This development is only possible with a
good coverage of Charging Stations. To advance the roll out of charging infrastructure, open communication standards play a key
role: to enable switching from charging network without necessarily replacing all the Charging Stations, to encourage innovation
and cost effectiveness and to allow many and diverse players participate in this new industry.
Additionally, the EV charging infrastructure is part of the Smart Grid, a larger and still evolving ecosystem of actors, devices and
protocols. In this Smart Grid ecosystem, open communications standards are key enablers for two-way power flows, real time
information exchange, demand control and eMobility services.
The Open Charge Point Protocol (OCPP) is the industry-supported de facto standard for communication between a Charging
Station and a Charging Station Management System (CSMS) and is designed to accommodate any type of charging technique.
OCPP is an open standard with no cost or licensing barriers for adoption.
1.1. OCPP version 2.1
This specification defines version 2.1 of OCPP.
Version 2.1 is an extension of OCPP 2.0.1. OCPP 2.1 has its own JSON schemas, but the schemas are OCPP 2.0.1 schemas that
have been extended with optional fields that are used by OCPP 2.1 functionality. With the minor exceptions mentioned below, all
application logic developed for OCPP 2.0.1 will continue to work in OCPP 2.1 without any changes. The new features of OCPP 2.1,
of course, require new application logic.
Use case A02 & A03
The application logic in a CSMS for OCPP 2.0.1 for use cases A02 & A03 requires a small change in order to work in OCPP
2.1.
The SignCertificateRequest message has been extended with a requestId field, such that the resulting
CertificateSignedRequest message can be accurately mapped to the request that initiated it. Use of requestId is optional for
Charging Station, but when present, CSMS will have to use it in the subsequent CertificateSignedRequest message.
Note, that the updated application logic remains valid to use in OCPP 2.0.1.
Use case N02
The application logic in a Charging Station for OCPP 2.0.1 for use case N02 requires a small change in order to work for
OCPP 2.1.
The message NotifyMonitoringReportRequest has been extended with a required field in VariableMonitoringType:
eventNotificationType. Charging Station has to provide this field. It provides essential information to CSMS about the type of
monitor (HardWiredMonitor, PreconfiguredMonitor, CustomMonitor) that was missing in OCPP 2.0.1. Existing OCPP 2.0.1
logic in a CSMS that is not aware of this new field, will continue to work.
1.2. Terms and abbreviations
This section contains the terminology and abbreviations that are used throughout this document.
1.2.1. Terms
Term Meaning
Charging Station The Charging Station is the physical system where an EV can be charged. A Charging Station has one or
more EVSEs.
Charging Station Charging Station Management System: manages Charging Stations and has the information for authorizing
Management Users for using its Charging Stations.
System (CSMS)
Electric Vehicle An EVSE is considered as an independently operated and managed part of the Charging Station t
...