The International Automotive Lighting
and Light Signalling Expert Group

Groupe de Travail "Bruxelles 1952"

Quick links

GTB Statute
GTB By-Laws
GTB competition law compliance policy


Since 1952 the GTB has been recognised as the global group of vehicle manufacturers, system suppliers, light source manufacturers, testing laboratories and academia working to assure regulation and safety of automotive lighting systems and their installation.

GTB membership includes 19 delegations from countries including Europe, North America and Asia. Representation in national delegations comes from industry, approval testing laboratories, regulatory agencies and academia. 

Our principal activity today is the preparation of proposals for new and amended UNECE Regulations, taking into account technical development, actual testing experience and the safety and economic implications with a view to practical application.

Quick links (password requested)

List of GTB delegates and contact details
GTB Standard template for documents (DOT format)
Calendar of lighting meetings
GTB-CE Reports
SLR section


Access to GTB General Assembly's documents

    Document for reference purposes (password requested)
    Examples-Drawings of single lamps
    Explanation R113 conversion from 12V to 13.2V



Please select the group you want to access (password requested)



WG Front Lighting

  WG Photometry    
    WG Signal Lighting         WG Installation    


  TF Conformity of Production     WG Light Sources  
WG Strategy  

 TF Standardised LED Light Sources


WG Safety and Visual  Performance

  WG Regulatory Cooperation and National Coordination






Sede operativa: GTB c/o REGUS - Via Ernesto Lugaro 15 – 10126 Torino (Italy)
E-mail: secretary@gtb-lighting.org  |  Tel. +39 011 092.8393  |  
Codice Fiscale 97739340012  |  P.IVA IT11895960018