Non-Governmental Organization
International Automotive Lighting and Light-signalling Expert Group
Submissions to WP.29 bodies: Five hundred and thirty-five documents (latest document: 28 October 2022)

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.

2022 October 28
UN R48/R149: Revision of document GRE/2022/21 | GRE-87-30
2022-10-28 2022-11-02 15:01:36 UTC
2022 October 25
“Headlamp Safety Performance Rating” (HSPR): GTB Recommended Practice | GRE-87-19
2022-10-25 2022-10-27 05:28:23 UTC
2022 October 13
“Driver Assistance Projections” (DAP): Live demonstrations during GRE-87 | GRE-87-06
2022-10-13 2022-10-20 17:17:15 UTC
2022 October 7
“Signalling Road Projection” (SRP): Status report and request for guidance | GRE-87-03
2022-10-07 2022-10-16 11:14:22 UTC
2022 July 28
RE5: Proposal for amendment 9 to the Consolidated Resolution on the common specification of light source categories | GRE/2022/26
2022-07-28 2022-09-28 08:11:36 UTC
2022 July 27
UN R48: Proposal for a Supplement to the 06, 07 and 08 series of amendments | GRE/2022/17
2022-07-27 2022-09-27 15:14:16 UTC
2022 July 27
UN R48: Proposal for a Supplement to the 06, 07 and 08 series of amendments | GRE/2022/18
2022-07-27 2022-09-27 15:23:34 UTC
2022 July 27
UN R48: Proposal for a Supplement to the 03, 04, 05, 06, 07 and 08 series of amendments | GRE/2022/19
2022-07-27 2022-09-27 15:26:45 UTC
2022 July 27
UN R48: Proposal for a Supplement to the 03, 04, 05, 06, 07 and 08 series of amendments | GRE/2022/20
2022-07-27 2022-09-27 15:30:20 UTC
2022 July 27
Proposal for a Supplement to the 06, 07 and 08 series of amendments to UN R48 and to the 01 series of amendments to UN R149 | GRE/2022/21
2022-07-27 2022-09-27 15:33:02 UTC
2022 July 27
UN R149: Proposal for a Supplement to the 00 series of amendments | GRE/2022/22
2022-07-27 2022-09-27 15:38:09 UTC
2022 February 7
UN R48: Proposal for a Supplement to the 06, 07 and 08 series of amendments | GRE/2022/2
2022-02-07 2022-03-04 11:43:24 UTC
2021 December 20
Question concerning boundaries of geometric visibility for lighting | SLR-52-11
2021-12-20 2022-01-06 18:34:36 UTC
2021 December 14
Comments to Regulation Nos. 48/53/74/86/148/149 | SLR-52-05
2021-12-14 2022-01-11 13:48:57 UTC
2021 October 29
How to reduce power consumption in existing lighting functions without reducing safety | GRE-85-37
2021-10-29 2022-03-04 15:51:40 UTC
2021 October 29
Signalling Road Projection | GRE-85-38
2021-10-29 2022-03-04 15:53:11 UTC
2021 October 28
UN R48: Proposed amendments to new supplement to the 06, 07 and 08 series of amendments | GRE-85-33
2021-10-28 2022-03-04 15:39:35 UTC
2021 October 19
UN R48: Proposal for new supplement to 06, 07 and series 08 series of amendments | GRE-85-20
2021-10-19 2022-03-04 13:24:20 UTC
2021 September 30
Technical requirements concerning manoeuvring lamps | SLR-51-08
2021-09-30 2021-10-01 15:50:15 UTC
2021 August 12
RE 5: Proposal for amendment | GRE/2021/24
2021-08-12 2021-09-14 10:58:16 UTC
2021 August 6
UN R48: Proposal for Supplement to the 06, 07 and 08 series of amendments | GRE/2021/18
2021-08-06 2021-09-14 10:03:00 UTC
2021 July 22
UN R148: Tell-tale and rear registration plate illuminating device | SLR-49-01/Rev.1
2021-07-22 2021-07-14 15:55:38 UTC
2021 July 21
UN R149: Comparison of photometric stability text | SLR-49-15/Rev.1
2021-07-21 2021-07-30 09:34:55 UTC
2021 July 21
Revised marking examples for UN R148 and UN R150 | SLR-49-17
2021-07-21 2021-07-30 09:48:17 UTC
2021 July 15
Question on test points of the photometric stability for LED H/L and AFS | SLR-49-08
2021-07-15 2021-07-18 17:52:09 UTC