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Non-Governmental Organization
International Automotive Lighting and Light-signalling Expert Group

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.

Recent WP.29 Contributions from GTB

10 Mar

UN R148: Timing table for light source technology tests (SLR-37-07/Rev.1)

["UN Regulation on uniform provisions concerning the approval of light-signalling devices (lamps) for power-driven vehicles and their trailers Adopted during the March 2019 WP.29 session, this regulation supersedes the previous UN Regulations on the approval of direction indicators and other light-signalling devices (UN Regulations R4, R6, R7, R23, R38, R50, R77, R87, and R91). Light-Signalling Devices Light-Signalling Devices (LSD) UN Regulation No. 148 UN R148"]

28 Feb

UN R149: Proposal to amend Conformity of Production provisions (SLR-37-08)

["UN Regulation on uniform provisions concerning the approval of road illumination devices (lamps) and systems for power-driven vehicles Adopted during the March 2019 WP.29 session, this UN Regulation consolidates and supersedes earlier UN Regulations concerning the approval of headlamps and related road-illumination devices (UN R19, R98, R119, R112, R113, and R123). Road Illumination Devices (RID) Road Illumination Devices (RID) UN Regulation No. 149 UN R149"]

27 Feb

UN R148: A. Proposal for an amendment (SLR-37-05/Rev.1)

News & Developments

Nine news articles related to GTB are in the GAR database.

Regulation:	UN Regulation No. 117 \| Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance
Document:	Revision 4 \| Amendment 2
Corresponds to:	02 series of amendments \| Supplement 10 (Entered into force on 11 Jan 2020)
Based on:	Document WP.29/2019/54 Proposal to correct a type in Annex 7- Appendix 2, Part 2, Paragraph 5 where the snow group index should read “1.00”, not “100” as appeared erroneously in the adopted text correct the text where the word “tyres” was inadvertently omitted from Paragraph 2.1. align the provisions of UN R117 regarding approval numbers and markings with the provisions of Schedule 4 to the revised 1958 Agreement.

Regulation:	UN Regulation No. 129 \| Enhanced Child Restraint Systems
Document:	Revision 4 \| Amendment 2
Corresponds to:	03 series of amendments \| Supplement 2 (Entered into force on 11 Jan 2020)
Based on:	Document WP.29/2019/40 Proposal to introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy specify the dimensions of the approval number update i-Size universal ISOFIX, Specific Vehicle ISOFIX, i-Size Booster seat and Specific Vehicle Booster seat numbering (omitted in WP29-2018-045) rearrange the dimensions mark for arrangements of the approval mark where used in combination with the module mark change the 145 cm stature of the Specific Vehicle Booster seat to 150 cm stature as this is the correct upper limit, and clarify that Conformity of Production assessments shall be conducted under the same requirements as those of the original approval or, if applicable, the extension of the approval.

Regulation:	UN Regulation No. 129 \| Enhanced Child Restraint Systems
Document:	Revision 3 \| Amendment 4
Corresponds to:	02 series of amendments \| Supplement 5 (Entered into force on 11 Jan 2020)
Based on:	Document WP.29/2019/39 Proposal to introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy specify the dimensions of the approval number correct the term “Regulation No. 129-02” to “UN Regulation No. 129/02” change the 145 cm stature of the Specific Vehicle Booster seat to the 150 cm stature as this is the upper limit, and modify the approval markings for consistency between technical services and approval authorities and between the labels of products approved under the 02 and 03 series.

Regulation:	UN Regulation No. 129 \| Enhanced Child Restraint Systems
Document:	Revision 1 \| Amendment 7
Corresponds to:	01 series of amendments \| Supplement 6 (Entered into force on 11 Jan 2020)
Based on:	Document WP.29/2019/38 Proposal to introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS, and clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy.

Non-Governmental Organization International Automotive Lighting and Light-signalling Expert Group

Recent WP.29 Contributions from GTB

News & Developments

Non-Governmental Organization
International Automotive Lighting and Light-signalling Expert Group