Declare any subcontractor to CERN for approval, in accordance with the country(-ies) of origin declared at the time of the bid.
The request shall be made in writing, and shall include:
•    The contract reference, 
•    The name of the subcontractor, 
•    Address and contact details of the subcontractor,
•    Description of the services performed,
•    Percentage of services performed by the subcontractor over contract annual turnover,
•    Procurement code concerned.

Warning:  
Beware: the subcontractor shall not enter CERN site nor start any work without CERN’s prior approval. In this respect, the procurement officer has to be informed as soon as possible.

Check contractual conditions (subcontracting allowed (Y/N), maximum percentage and type of activities allowed, country of origin in accordance with the bid (and FC paper, if any)), accept the firm or not and submit the Contractor’s request of subcontractor registration including name and address to the procurement officer for approval. 

Verify contractual conditions, and confirm whether the subcontractor is blacklisted or not. 

Approve or reject the request and send a confirmation to the Contractor. 
In case of confirmation, the letter shall request the Contractor to proceed with all administrative measures (access, authorisations etc.) necessary for the performance of the services by the subcontractor (see section “Registration and access authorizations”).
 

Update the Prevention Plan (PP) with the subcontractor name to be listed as part of subcontractors declared under the contract. In case of Category 1 operations, ask the contractor to provide its subcontractors’ PPSPS.

Tips: Follow-up and periodically check the accesses and training of the subcontractor’s personnel newly added. 

Perform the registration process under the same contract reference for the subcontractor’s personnel as if they were members of the Contractor’s personnel.