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Intergovernmental Organizations and the Climate Change Process

United Nations

Attending sessions
Article 7, paragraph 6 of the United Nations Framework Convention on Climate Change provides that representatives of the United Nations system may be represented as observers at sessions. In order to attend sessions representatives of UN bodies and organizations need to be officially nominated by their respective heads to the Executive Secretary of the secretariat.
Please send the formal letter of nomination to

Please note that UN organizations and agencies are not required to apply for admission to the UNFCCC process.

Intergovernmental organizations

Attending sessions
Participating effectively

Changing contact details


Admitted observer organizations should contact the secretariat whenever there is a change in their contact details by completing a Contact Details Form for already admitted intergovernmental organizations and sending it to Only typed forms sent electronically are acceptable. In case your browser does not support the filling of form fields, you may try a different browser or open the form in a PDF reader supporting this feature.


Contact Details Form:

pdf-icon English pdf-icon Français


Please be aware of the different systems that are used by observer organizations for admission, registration and side event and exhibit applications respectively.

• Online Registration System (ORS)
Function: For already-admitted IGOs to nominate and confirm their representatives for UNFCCC sessions by the respective deadlines (stated in the notification/information note for each conference).
Logging in to ORS : If you have already created an account in ORS, the login and password remain valid when you use the system to nominate for future sessions.
User Manual: pdf-icon


• Side Events and Exhibits Online Registration System (SEORS)
Function: For already-admitted IGOs to apply for side events and exhibits.
Logging in to SEORS: All applicants must register for a new personal account in SEORS for each conference. Your user name and password from the previous sessions do not work.
FAQs: pdf-icon
User Manual: pdf-icon>

• Online Admission System (OAS)
Function: For new organizations to apply for admission as observers to the UNFCCC process. Please note that already-admitted observer organizations are not required to use this system as, in accordance with FCCC/CP/1995/7, paragraph 22, organizations, once admitted, are eligible to attend future UNFCCC sessions and do not need to reapply for admission.
Logging in to OAS: Applying organizations must create a new account in order to use the system. Following the review cycle, eligible organizations that are formally admitted by the COP will not be required to use the system again.
User Manual: pdf-icon



The secretariat launched the Online Admission System (OAS) in May 2014. Any organization wishing to apply for admission is now required to submit their application via OAS. The secretariat will no longer accept hard copy or emailed applications.

Please refer to the dates and deadlines section
on the right of the page for relevant admission deadline dates.


Admission as an observer organization to the UNFCCC is a one-off process. In accordance with FCCC/CP/1995/7, paragraph 22, organizations, once admitted, are eligible to attend future UNFCCC sessions and do not need to reapply for admission. 

Article 7, paragraph 6, of the United Nations Framework Convention on Climate Change provides for the admission of intergovernmental organizations to sessions of the Convention bodies as observers.  New applicant organizations are formally admitted by the Conference of the Parties (COP) following the successful completion of the admission process. Once an organization is admitted, its representatives may attend sessions of the Convention bodies as observers.

To apply for admission, organizations must submit a set of required documents to the secretariat. The list of required documents is available below under Standard Admission Process.

The deadline for admission is 31 August the year before the admitting COP (e.g. the deadline for admission for COP 23/CMP 13 in 2017 is 31 August 2016). Please refer to thepdf-icon information note on revised deadlines for admission for more details.


Standard admission process pdf-icon English (150 kB) pdf-icon Français (188 kB)
Mandate for admission: Article 7, paragraph 6 pdf-icon English pdf-icon Español pdf-icon Français
Single admission process for COP and CMP pdf-icon Decision 36/CMP.1 (75 kB) (paragraph 2c )  

List of admitted organizations  


Attending sessions

Intergovernmental organizations  that have been admitted to the UNFCCC process may attend sessions of the Convention bodies as observers provided that they use the Online Registration System (see below) to nominate and confirm representatives by the set deadlines.

Notification:  The secretariat’s usual practice is to post official notifications or information notes for upcoming sessions on the UNFCCC website three months prior to the start date of the sessions. It is the responsibility of the admitted observer organization to check for notification/information note updates. You can find current information on the Notifications page of the UNFCCC website.

Registration: The UNFCCC Online Registration System (ORS) has been in place for all sessions since 2010. ORS will open upon issuance of the notification/information note which contains the nomination and confirmation deadlines. Designated Contact Points (DCP) of admitted IGOs should use the system to nominate and confirm representatives by the given deadlines. Late nomination and confirmation of representatives after these deadlines will not be accepted.

For further information and guidance on the nominations and confirmation process and using the system, please refer to the links below. 

Online Registration System homepage:

Online Registration System User Manual:

For technical assistance when using the system, please contact

Attendance: Admission of your organization is not the only way to attend sessions.  If your organization is not admitted and you have missed the deadline for admission or if your organization is not eligible for admission, the representatives of your organization might be nominated and confirmed to attend sessions by already admitted observer organizations who agree for them to be part of their delegation. Visibility will be given to the name of the nominating organization on the official list of participants. The contact details of the admitted observer organizations are available here.

Virtual participation: It is also possible to follow the proceedings of UNFCCC sessions via webcast. Please check the Meetings page of the UNFCCC website page for the current session and click on webcasts.

Participating effectively

Draft rules of procedure

pdf-icon Use of cameras and audio/video recording devices (146 kB)
Making statements at the COP and CMP by the head of the organization in the context of the high level segment:  If speaking slots for observer organizations are foreseen at the high-level segment, the secretariat will contact the Designated Contact Points (DCPs) of admitted IGOs who have nominated representatives to attend the COP. Please note that speaking slots are for the head of organization only 

Submissions from observer organizations

Providing input to the project-based mechanisms [CDM, JI]. public awareness, education and training [CC:iNet] or on technolgy transfer [TT:CLEAR]
Subscribing to the UNFCCC newsletter
Keep your finger on the pulse: Community tools such as Facebook, Twitter and Flickr allow virtual participation during and between UNFCCC sessions. All links may be found at and include the following:


For press briefings contact 


 Side Events


For further information, please contact

Dates and deadlines

SB 44

Online registration for SB 44
The Online Registration System for admitted IGOs and NGOs to nominate their representatives pdf-icon closed Thursday, 17 March 2016 at midnight CET.

The quota has been announced on Thursday, 24 March 2016. The confirmation through ORS closed Thursday, 12 May 2016 at midnight CET.

Side events and exhibits
Applications for SB 44 closed on 19 February 2016 at 5 pm CET. Visit SEORS for more details.


COP 22/CMP 12

The application period for admission as observer organization in time for COP 22/CMP 12 closed on 31 August 2015.


Registration for COP 22
The Online Registration System for admitted IGOs and NGOs to nominate their representatives is pdf-icon open until Tuesday, 2 August 2016 at midnight CET.

The quota will be announced on Tuesday, 9 August 2016. The confirmation through ORS will then be open until Monday, 31 October 2016 at midnight CET.


Side events and exhibits
SEORS for COP 22/ CMP 12 will be open at 10 a.m. Central European Time (CET) on Tuesday, 19 July 2016 and close at 5 p.m. CET on Friday, 22 July 2016.


COP 23/CMP 13

Deadline for applications for admission in time for COP 23/CMP 13 is 31 August 2016 at midnight CET.


ADP  Virtual Expo

Still open for applications!
Please find further information on the ADP Virtual Expo, including how to apply here:


Observer organizations statements at recent sessions

COP 21/CMP 11 (high-level Segment)
SBI 40
ADP (all sessions)
COP 19/CMP 9 (high-level segment)


Convention bodies often request written input on views and information on various issues under negotiation. These mandates are extended to observer organizations. Please refer to the webpage of submissions from observers available here.