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.

RFP/RFQ No.RFQ No. 2014-0321/ORNAT
Date posted02 October 2014

Replacement of Power/Communication Poles at PS40, Sonseca, Spain

Request for Quotation

Closing date13 October 2014
RFP/RFQ No.RFQ No. 2014-0294/ORNAT - RE-BID
Date posted29 September 2014

Station Vehicles for IS31 and AS057 - RE-BID

Request for Quotation

Closing date03 October 2014
RFP/RFQ No.RFP No. 2014-0301/SOW
Date posted19 September 2014

Procurement of Linux Workstations

Request for Proposal

Clarifications and Extension to Deadline

Closing date15 October 2014
RFP/RFQ No.RFQ No. 2014-0259/TEMBO - RE-BID
Date posted18 September 2014

Supply and Delivery of a 4X4 Vehicle for use at AS066 (MDT) Station in Morocco - RE-BID

Request for Quotation

Clarification No. 1

Closing date10 October 2014
RFP/RFQ No.RFI No. 2014-0296/ALVAREZ
Date posted04 September 2014

Equipment Storage and Maintenance Facility

Request for Information

Closing date08 October 2014

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.