1. Via the CSO Net messaging system (preferred).
Before contacting us, please first visit the following online information resources if you have:
If you have a different question or need more information, follow this link to ask us a question now.
2. In person.
The NGO Branch can receive visitors by appointment ONLY. Please call +1 (212) 963-8652 to schedule an appointment.
3. By mail.
Please address correspondence to NGO Branch, United Nations, S-2540, New York, NY 10017, USA.