Forms for cross-border workers
- Phone: 2757-4220
- Fax: 2757-4310
Belgian supplement (complément belgo-luxembourgeois)
- Phone: 2757-4249 / 4252
- Fax: 29 91 91
Registration of persons insured abroad but living or staying in Luxembourg
- Phone: 2757-4246 / 4664
- Fax: 2757-2766