Clarification of the Invitation to Tender

Purpose

CERN Procurement Procedures allows some amendments to the Invitations to Tender after the documents are sent out.

In addition, bidders are allowed to request some clarifications on points they do not fully understand.

Procedure

Amendment from CERN

CERN reserves the right to amend the invitation to tender documents. Any amendment shall be communicated in writing to all bidders no later than one week prior the closing date and shall, from the date of issue, form an integral part of the invitation to tender

Clarification requests from bidders

The bidders shall request CERN in writing to provide any information missing in the invitation to tender and to clarify any ambiguity therein.

CERN shall respond in writing to any request concerning the invitation to tender received earlier than two weeks prior to the closing date. If CERN receives a request after that time limit, it shall respond thereto only if it deems it practicable.

If the request concerns an amendment to the invitation to tender, CERN shall responds if the request is received within one week of communication of the amendment. If CERN receives a request after that time limit, it shall respond thereto only if it deems it practicable.

CERN shall forward copies of its response to all bidders and shall include a description of the request, the source of which shall remain anonymous.

After the Invitation to Tender is sent out, any communication between the technical responsible and a bidder is prohibited. All the exchanges shall be done in written and through the purchasing service.