UN Regulation No. 31
Sealed Beam European Headlamps for Motor Vehicles

Uniform Provisions Concerning the Approval of Power-driven Vehcile's Halogen Sealed-Beam Headlamps (HSB) Emitting a European Asymmetrical Passing Beam or a Driving Beam or Both

This regulation has been “frozen” by the Working Party on Lighting and Light-signalling Equipment (GRE) and is no longer subject to further development. At its November 2013, WP.29 voted to cease the granting of new type-approvals. As a result, this regulation only applies to legacy aftermarket products.

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Revisions and Amendments

Series of Amendments and Supplements

Application of the Regulation

Contracting Parties applying UN R31

Related News and Information


14 Jul 2016	14 Jul 2016 \| Road Seems Dark to You? New Tests Blame Your Headlights	USA United States of America	Road Illumination Road Illumination Technologies WP.29 Discussion Topic Road Illumination Technologies, Uniform Provisions Concerning the Approval of Motor Vehicle Headlamps Emitting an Asymmetrical Passing Beam or a Driving Beam or Both and Equipped with Halogen Filament Lamps (H4 Lamps) This Regulation applies to motor vehicle headlamps which may incorporate lenses of glass or plastic material. This regulation has been “frozen” by the Working Party on Lighting and Light-signalling Equipment (GRE) and is no longer subject to further development. This regulation was superseded by UN R112. Canada unilaterally accepts headlamps type-approved under UN R20. Headlamps (H4) H4 Halogen Headlamps UN Regulation No. 20 UN R20, Uniform Provisions Concerning the Approval of Power-driven Vehcile's Halogen Sealed-Beam Headlamps (HSB) Emitting a European Asymmetrical Passing Beam or a Driving Beam or Both Halogen SB Headlamps Sealed Beam European Headlamps for Motor Vehicles UN Regulation No. 31 UN R31, Uniform Provisions Concerning the Approval of Filament Lamps for Use in Approved Lamp Units of Power-driven Vehicles and of their Trailers UNECE R37 specifies technical and administrative requirements for the approval of a wide range of filament lamps (shown in Annex 1 of the regulation) that are intended for use in approved lamp units of power-driven vehicles and of their trailers. Filament Lamps Filament Lamps UN Regulation No. 37 UN R37, Uniform Provisions Concerning the Approval of Vehicles with regard to the Installation of Lighting and Light-signalling Devices Regulation No. 48 establishes minimum requirements for lighting equipment towards ensuring satisfactory levels of traffic safety, including such areas as adequate forward illumination, limits on headlamp glare, luminosity of signalling lamps, etc. The regulations considers the installation and functioning of lighting equipment as a whole to ensure compatible performance across all types of equipment and devices (headlamps, signalling lamps, markers lamps, etc.). Installation of Lighting Installation of Lighting and Lighting-Signalling Equipment UN Regulation No. 48 UN R48, Uniform Provisions Concerning the Approval of Motor Vehicle Headlamps Equipped with Gas-discharge Light Sources This regulation will be superseded by a new UN Regulation on Road-Illumination Devices (RID) under the Simplification of Lighting Regulations development program. Gas-discharge-light Headlamps Headlamps Equipped with Gas-discharge Light Sources UN Regulation No. 98 UN R98, Uniform Provisions Concerning the Approval of Gas-discharge Light Sources for use in Approved Gas-discharge Lamp Units of Power-driven Vehicles Gas-discharge Light Sources Gas-discharge Light Sources UN Regulation No. 99 UN R99, Uniform Provisions Concerning the Approval of Motor Vehicle Headlamps Emitting an Asymmetrical Passing Beam or a Driving Beam or Both and Equipped with Filament Lamps and/or Light-Emitting Diode (LED) Modules UN R112 superseded UN Regulations Nos. 1, 8, and 20. UN R112 will be superseded by a new UN Regulation on Road-Illumination Devices (RID) under the Simplification of Lighting Regulations development program. Asymmetrical Beam Headlamps Headlamps Emitting an Asymmetrical Passing Beam UN Regulation No. 112 UN R112, Uniform Provisions Concerning the Approval of Motor Vehicle Headlamps Emitting a Symmetrical Passing Beam or a Driving Beam or Both and Equipped with Filament, Gas-discharge light sources or LED Modules This regulation will be superseded by a new UN Regulation on Road-Illumination Devices (RID) under the Simplification of Lighting Regulations development program. Symmetrical Headlamps Symmetrical Beam Headlamps of Filament, Gas-discharge, or LED Type UN Regulation No. 113 UN R113, Uniform Provisions Concerning the Approval of Adaptive Front-lighting Systems (AFS) for Motor Vehicles This regulation will be superseded by a new UN Regulation on Road-Illumination Devices (RID) under the Simplification of Lighting Regulations development program. Adaptive Front-lighting Systems Adaptive Front-lighting Systems UN Regulation No. 123 UN R123, and Uniform provisions concerning the approval of light emitting diode (LED) light sources for use in approved lamp units on power-driven vehicles and their trailers LED Light Sources Light-Emitting Diode Light Sources UN Regulation No. 128 UN R128
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Development of the Regulation

No changes to this regulation are pending.

Latest Documents

22 Aug 2013

Proposal for the 03 series of amendments to Regulation No. 31 | WP.29/2013/77

6 Mar 2013

Canadian unilateral application of certain UN Regulations | WP.29-159-03

31 Jan 2013

Proposal for Collective Amendments to Regulations No. 5 and No. 31 | GRE/2013/5

See all 7 related documents

Latest Meeting Discussions
World Forum for the Harmonization of Vehicle Regulations \| Session 161 \| 12-15 Nov 2013
Working Party on Lighting and Light-signalling \| Session 69 \| 8-11 Apr 2013
World Forum for the Harmonization of Vehicle Regulations \| Session 158 \| 13-16 Nov 2012
	See more related meetings

Latest Meeting Discussions
World Forum for the Harmonization of Vehicle Regulations \| Session 161 \| 12-15 Nov 2013
Working Party on Lighting and Light-signalling \| Session 69 \| 8-11 Apr 2013
World Forum for the Harmonization of Vehicle Regulations \| Session 158 \| 13-16 Nov 2012
	See more related meetings

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.

UN Regulation No. 31 Sealed Beam European Headlamps for Motor Vehicles