All agencies closed

Because of the pandemic, the CNS decided to close its agencies to the public. During the closure, the CNS can be reached by telephone through the usual numbers and by email at

However, we ask you to seek answers to your questions as much as possible on this website in order to allow our agents to deal with any queries that remain unanswered.

Reimbursements will continue to be paid. Please do NOT deposit your documents in the agencies’ letter boxes BUT submit your requests per regular mail (no stamp needed) to the following address: CNS, 125, route d’Esch, L-2980 Luxembourg.  

In order to process a reimbursement, we need:

  • the original invoice
  • the proof of payment
  • the 13-digit identification number

In case of emergency, you can make an appointment at one of our following agencies: Ettelbruck, Hollerich, Esch or Differdange, by calling 2757-1.

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