Non-Governmental Organization
International Automotive Lighting and Light-signalling Expert Group
Submissions to WP.29 bodies: Four hundred and eighty-three documents (latest document: 7 October 2020)

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 17 delegations from countries, including Europe, USA and Japan. Representation in national delegations comes from industry, approval testing laboratories, regulatory agencies and academia.

The GTB’s 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.

In 2012, the GTB changed its name from the Working Group Brussels 1952 (aka Groupe de Travail Bruxelles 1952, hence the acronym GTB) to the International Automotive Lighting and Light-signalling Expert Group.

You can find more information about GTB at their website.

2020 October 11
Modifications to document GRE/2020/4 (UN R48 and R149) | GRE-83-30
2020-10-11 2020-10-11 08:37:27 UTC
2020 September 28
UN R48: Draft text update with new RID beam in R149-01 | SLR-41-04/Rev.1
2020-09-28 2020-09-21 08:48:39 UTC
2020 August 29
Matched pair in UN Regulation No. 149 - Stage 2 lighting simplification | SLR-40-01/Rev.1
2020-08-29 2020-08-24 17:38:57 UTC
2020 August 29
Draft presentation on scientific notation under lighting regulations | SLR-40-05/Rev.1
2020-08-29 2020-08-24 18:33:36 UTC
2020 August 29
UN R149: Annex 13- Marking size and examples | SLR-40-10/Rev.2
2020-08-29 2020-08-26 09:21:25 UTC
2020 August 24
UN R48: Introduction of new RID beam per UN R149-01 | SLR-40-04
2020-08-24 2020-08-24 18:30:22 UTC
2020 August 6
UN R65: Proposal for Supplement 11 | GRE/2020/18
2020-08-06 2020-08-06 10:29:18 UTC
2020 August 5
RE5: Proposal for amendment to the Consolidated Resolution on the common specification of light source categories | GRE/2020/22
2020-08-05 2020-10-05 13:56:08 UTC
2020 July 13
UN R48: Draft update with new RID beam in R149-01 | SLR-39-03/Rev.1
2020-07-13 2020-06-26 17:16:48 UTC
2020 July 8
Lighting regulations: Scientific notation “cookbook” | SLR-39-04/Rev.1
2020-07-08 2020-06-30 15:04:46 UTC
2020 July 8
UN R149: Marking size issue in Annex 13 | SLR-39-22
2020-07-08 2020-07-08 18:23:49 UTC
2020 July 7
UN R149: GTB proposal concerning “Matched pair” | SLR-39-11/Rev.1
2020-07-07 2020-07-01 15:31:32 UTC
2020 June 30
Lighting regulations: General remarks on scientific notation | SLR-38-12/Rev.2
2020-06-30 2020-05-22 16:44:03 UTC
2020 June 30
UN R148: Scientific notation changes | SLR-38-13/Rev.1
2020-06-30 2020-05-22 16:45:22 UTC
2020 June 30
UN R149: Scientific notation changes | SLR-38-14/Rev.2
2020-06-30 2020-05-22 16:46:13 UTC
2020 June 30
UN R150: Scientific notation changes | SLR-38-15/Rev.2
2020-06-30 2020-05-22 16:47:10 UTC
2020 June 2
UN R48: Inconsistencies across Supplements 11, 12, and 13 of the 06 series | SLR-38-10/Rev.1
2020-06-02 2020-05-02 12:48:33 UTC
2020 May 27
Lighting: System Approach related to 2 lane (M,N) and 1 lane vehicles: How to proceed? | SLR-38-22
2020-05-27 2020-05-27 09:11:58 UTC
2020 April 24
UN R148: Proposal to clarify the requirements of failure provisions | SLR-38-06
2020-04-24 2020-04-24 14:05:20 UTC
2020 March 10
UN R148: Timing table for light source technology tests | SLR-37-07/Rev.1
2020-03-10 2020-02-27 17:06:37 UTC
2020 February 28
UN R149: Proposal to amend Conformity of Production provisions | SLR-37-08
2020-02-28 2020-02-28 16:28:31 UTC
2020 February 27
UN R148: A. Proposal for an amendment | SLR-37-05/Rev.1
2020-02-27 2020-02-27 17:03:55 UTC
2020 February 27
UN R148: Introduction of D-lamp possibility for Daytime Running Lamps | SLR-37-06
2020-02-27 2020-02-27 17:05:23 UTC
2020 February 14
Headlamps: Scientific notation of the photometric requirements in UN Regulations | SLR-37-02
2020-02-14 2020-02-24 13:08:41 UTC
2020 February 5
Proposal for Supplements to UN R149 and to the 06 series of amendments to UN R48 | GRE/2020/4
2020-02-05 2020-02-25 08:58:44 UTC