
REV
Review is ongoing.
Deadline for submission is 08 Sep 2025 23:59 (CEST). Submission after deadline is NOT be possible.
Deadline for submission is 08 Sep 2025 23:59 (CEST). Submission after deadline is NOT be possible.
Experts can register to review the draft ECV list from 12 May 2025 09:00 to 08 Sep 2025 23:59 (CEST). Please register first if you would like to review the draft.
How do I submit comments?
- If you have not registered yet, go to the registration page for the draft or click on the Register button on this webpage;;
- Fill out the details in the form and click on the 'Request Access' button;
- The form will be submitted for approval once you accept the confidentiality agreement;
- Your unique credential will be sent to you via separate email, once the details are reviewed by the GCOS Secretariat. Please also check your spam folder to make sure that the email has not been marked as spam;
- If you have already registered, proceed to login with your existing credentials;
If you wish to read more about the history of why this review is happening see the background section. Additionally, a list of Frequently Asked Questions and Review Guidelines can be viewed here.
You are also welcome to join the information webinar which will take place on the 20th June.
To register, please click here.