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.
| 2021 June 14 |
Editorial errors with regard to lighting scientific notations | SLR-48-08
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2021-06-14 | 2021-06-14 15:14:03 UTC |
| 2021 June 14 |
Question on additional visibility test for red light towards front and/or white light towards rear of vehicle | SLR-48-09
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2021-06-14 | 2021-06-14 15:16:35 UTC |
| 2021 June 11 |
UN R149: Proposal for the 01 series of amendments | SLR-48-04
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2021-06-11 | 2021-06-11 10:46:24 UTC |
| 2021 May 14 |
UN R48: Proposal for provisions on additional contributors to the driving beam | SLR-46-25/Rev.1
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2021-05-14 | 2021-03-27 10:17:01 UTC |
| 2021 May 5 |
UN R148: Detachable outer lens marking provision | SLR-47-03
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2021-05-05 | 2021-05-05 17:25:55 UTC |
| 2021 May 5 |
UN R148: Comments on failure conditions | SLR-47-04
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2021-05-05 | 2021-05-05 17:34:40 UTC |
| 2021 April 26 |
UN R48: Revised proposal to GRE/2020/4 Rev 1 | GRE-84-24
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2021-04-26 | 2021-04-26 09:06:49 UTC |
| 2021 April 26 |
Article on road projections as a new and intuitively understandable human-machine interface | GRE-84-25
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2021-04-26 | 2021-04-26 09:09:29 UTC |
| 2021 April 26 |
Article on Investigation on Headlights with High-resolution Projection Modules | GRE-84-26
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2021-04-26 | 2021-04-26 09:11:44 UTC |
| 2021 April 26 |
Article on real driving benefits and research findings with digital light functions | GRE-84-27
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2021-04-26 | 2021-04-26 09:33:27 UTC |
| 2021 March 22 |
UN R148: 01 series of amendments rear marking plate lamps | SLR-46-10
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2021-03-22 | 2021-03-19 17:21:40 UTC |
| 2021 February 21 |
Proposal for R48, R148, R149: Visibility of red light and white light | SLR-44-07/Rev.1
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2021-02-21 | 2021-01-07 21:34:58 UTC |
| 2021 February 21 |
UN R149: New photometric tables | SLR-45-01/Rev.1
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2021-02-21 | 2021-01-24 18:14:36 UTC |
| 2021 February 20 |
Clarification of markings under the 01 series of UN R148 and UNR150 | SLR-45-06/Rev.1
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2021-02-20 | 2021-02-13 11:03:17 UTC |
| 2021 February 13 |
UN R148: 01 series change index table discussion | SLR-45-07
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2021-02-13 | 2021-02-13 11:05:31 UTC |
| 2021 February 12 |
Proposal for Supplements to UN R149 and to the 06 and 07 series of amendments to UN R48 | GRE/2020/4/Rev.1
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2021-02-12 | 2021-02-12 12:41:04 UTC |
| 2021 February 12 |
UN R48: Proposal for Supplement [16] to the 06 series and Supplement [02] to the 07 series of amendments | GRE/2021/5
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2021-02-12 | 2021-02-12 14:12:03 UTC |
| 2021 February 12 |
UN R149: Proposal for Supplement [4] | GRE/2021/6
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2021-02-12 | 2021-02-12 14:55:45 UTC |
| 2021 January 24 |
UN R149: Requirements tables | SLR-45-02
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2021-01-24 | 2021-01-24 18:15:54 UTC |
| 2020 December 13 |
UN R148: Application of scientific notations | SLR-43-05/Rev.1
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2020-12-13 | 2020-12-03 19:28:00 UTC |
| 2020 December 13 |
UN R149: Application of scientific notations | SLR-43-06/Rev.1
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2020-12-13 | 2020-12-03 19:29:04 UTC |
| 2020 December 13 |
UN R150: Application of scientific notations | SLR-43-07/Rev.1
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2020-12-13 | 2020-12-03 19:29:59 UTC |
| 2020 December 7 |
UN R148: Proposals for the 01 series of amendments | SLR-43-09
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2020-12-07 | 2020-12-07 12:53:28 UTC |
| 2020 December 7 |
Parking signal performed by position lamps | SLR-43-08
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2020-12-07 | 2020-12-07 12:57:27 UTC |
| 2020 November 9 |
UN R149: Proposal for simplification of photometric stability testing | SLR-42-05/Rev.1
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2020-11-09 | 2020-11-01 12:21:38 UTC |
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