On Wednesday 10 June 2026, it will not be possible to book an appointment at the reception desk or for a video call with the Guichet.lu Helpdeskuntil approximately 14.00, due to an update to the MyGuichet.lu assistant. Thank you for your understanding.

You can still go to the reception desk in person without an appointment, and the Helpdesk will remain available by phone and via the contact form.

Accreditation for technical study and verification tasks

Depending on the sector in question, the application for accreditation is processed by one of the following administrations:

  • in the sector of energy audits and inspections, safety inspections of installations and buildings, or safety in the civil service:
    • Ministry of the Economy (ministère de l’Économie - MECO);
    • Ministry of Labour (ministère du Travail - MT); or
    • Ministry of the Civil Service (ministère de la Fonction pubique - MFP);
  • in the sector of the natural environment, strategic environmental assessment (EES) and environmental impact assessment (EIA):
    • the Ministry of the Environment, Climate and Biodiversity (ministère de l’Environnement, du Climat et de la Biodiversité - MECB);
    • the Water Management Agency (Administration de la gestion de l’eau - AGE); or
    • the Nature and Forest Agency (Administration de la nature et des forêts - ANF);
  • in the sector of the human environment:
    • the Environment Agency (Administration de l’environnement - AEV).

For further information regarding accreditation for the various sectors, please refer to the relevant text: