Forms for cross-border commuters
- Phone: 2757-4220
- Forms for cross-border workers @: formulairesSE.cns@secu.lu
- Specific Belgian forms @: formulairesBL.cns@secu.lu
- Specific forms for pensioners @: formulairespensionneslu.cns@secu.lu
Belgian supplement (complément belgo-luxembourgeois)
- Phone: 2757-5020
- @: cbl.cns@secu.lu
Registration of persons insured abroad but living or staying in Luxembourg
- Phone: 2757-5030
- @: formulairesETR.cns@secu.lu