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CAS-17 Session Information


information.png Information and registration desk

Registration for the Science Summit and seventeenth session of the Commission for Atmospheric Sciences (CAS-17) will take place at the conference information and registration desk at the WMO Secretariat and start on 19 October 2017 from 4 to 6 p.m. Registration will continue throughout the Science Summit and the session. At the time of registration, participants will receive identification badges, which should be worn throughout the session.


cocktail-hour.png​ Official reception

The Goverment of Switzerland will kindly host the reception at the WMO Secretariat on Monday 23 October at 6 p.m. Invitations will be dispatched to the participants at the registration desk together with the badges.

paperless.png Paperless session

Documents will be posted before and during the session on the session website, in line with WMO greening efforts to promote paper-smart meetings. Therefore, participants are kindly invited to bring internet-enabled portable computers capable of handling Microsoft Word 2010 and Adobe PDF formats so that they can work in paper-smart mode during the session.

language.png Working languages

During the session, simultaneous interpretation in the six WMO official languages (Arabic, Chinese, English, French, Russian and Spanish) will be provided in the main conference room.

INF.png Material arrangements for the session

Material arrangements for the session are described in the INF1(1) document available from the Information Documents section of this website (please see below).


Visa.png Entry requirements

All participants who require a valid visa for admission to Switzerland should make their application for visas directly to the nearest diplomatic representation of Switzerland and include a copy of the present notification with the visa application. It is advisable that such applications be made as soon as possible. Please inform us through if you require an individual invitation letter for your visa application.

Please note that Switzerland applies Schengen regulations for the issuance of visas. Further details can be found below.

For further details and questions please contact us at The Secretariat is making all efforts to facilitate this relocation.

We trust that we will be able to make all the arrangements for successfully and smoothly organizing the meetings in Geneva and thank you for your understanding.

Information on Visas

Switzerland applies Schengen regulations for the issuance of visas. This means that all participants requiring a visa to enter Switzerland should apply for their visa directly to the Embassy or Consulate-General of Switzerland in their country. In cases where no Swiss Embassy or Consulate is available, participants should apply to the country designated by Switzerland to handle visa applications.

Under Schengen regulations, it is necessary for each visa applicant to make an appointment and to present him/herself in person, in order to submit and register biometric data. On 11 October 2011, the Schengen member states introduced the Visa Information System (VIS), which is used to store biometric data of Schengen visa applicants. Data remains valid in the VIS system for a period of 5 years.

Additional information in several languages regarding the implementation of the VIS system, registration of biometric data and the rollout timetable for Swiss embassies/consulates implementing the VIS system is available through the following link:

Time needed to obtain a visa may vary from case to case. It is strongly recommended that delegates inform themselves on the relevant appointment system and procedures as early as possible, to ensure that the visa may be issued in a timely manner. Delegates can find this information on relevant national government websites, or they can consult directly with the Swiss Embassy/Consulate in the applicant's country of residence. 

In cases where no diplomatic relations exist between a Member and Switzerland, or where a Member considers that some difficulties may be experienced in obtaining visas, delegates can submit a visa request directly to Switzerland. However, under Annex I of the General Regulations of the Organization, this request must be sent by the delegate to the Secretary-General of the World Meteorological Organization who will in turn submit it to Switzerland.

Such requests must contain all the necessary details: name, surname, date and place of birth, father's name, nationality, passport number, date and place of issue, expiry date, profession, place where the visa is to be issued, and duration of stay in Switzerland. Requests should be received by the Secretary-General as far in advance of the meeting as possible.

Additional information regarding entry visas for Switzerland and Swiss representation abroad may be found through the following links:




hotel.png Hotel

Participants are requested to book acommodation in Geneva by themselves. Below is the list of the hotels in vicinity of WMO Secretariat:   

1) Hotel Ibis Genève Centre Lac

Rue De Berne 26, Pâquis, 1201 Geneva, Switzerland

2) Hotel Drake-Longchamp

Rue Butini 7, Pâquis, 1202 Geneva, Switzerland

3) Hotel Ibis Genève Centre Nations

Rue du Grand Pré 33-35, 1201 Geneva, Switzerland

4) Hotel Les Nations

Rue du Grand Pré 62, 1202 Geneva, Switzerland

5) Hotel Eden

Rue de Lausanne 135, 1202 Geneva, Switzerland

6) Hotel Mon Repos

Rue de Lausanne 131, 1202 Geneva, Switzerland

For more information, please consult hotel websites on the Internet.


Participants should inquire with the hotels to see if it is possible to have special UN rates for the dates of their stay

event.png Transportation from airport

Public transports from Geneva airport to the city are free of charge. Participants can take their ticket from the machine at the baggage claim.  Participants can also take a taxi from the airport to the hotel (not paid by WMO).

information.png Contact information of local organizing committee (LOC)

Due to relocation of the Science Summit and CAS-17 Session from Denpasar, Bali to Geneva, all enquiries should be sent to with copy to