This is the list of current procurement tender(s) open for proposals in the Preparatory Commission for the CTBTO. Please visit this site from time to time for information on new procurement tenders.

Date posted11 May 2016

Review of the IFE14 PIR/PFD and related Services for CTBTO On-Site Inspection

Request for Quotation

Clarifications #1

Closing date31 May 2016
RFP/RFQ No.RFP No. 2016-0028/ROCHE
Date posted14 March 2016

Supply of High resolution Digitizers and Engineering Services for IMS Stations on a Call-off Basis

Request for Proposal

Acknowledgement Form

Clarifications #1

TOR - Attachment 1

TOR - Attachment 2

TOR - Attachment 3

Clarifications #2

Clarifications #3

Clarifications #4

Clarifications #5

Clarifications #6

Closing date27 May 2016

Additional information

If you are not yet registered with our organization, kindly fill in our Vendor Profile Form (Word Document) and return it either electronically to or via post to Chief, Procurement Section,  CTBTO, Vienna International Centre Wagramerstrasse 5, P.O. Box 1200, A-1400 Vienna, Austria.  Further information for potential vendors can be found in Annex I, Annex II, Annex III and in our General Conditions of Contract (Word Document). Please note that only requests from registered companies or organizations from CTBTO Member States (Word Document) will be considered.

In addition, if you wish to be included in the CTBTO mailing list, please contact the Procurement Section of CTBTO at You will then be informed of new tenders via Email as soon as they are issued.