UN R53 Supplement 3 (02 series) · UNECE Regulation No. 53 (ECE R53) — Uniform provisions concerning the approval of category L3 vehicles with regard to the installation of lighting and light-signalling devices.
UN R53 — Supplement 3 to the 02 series of amendments
Supplement 2 → 3
- What changed
- Lamps approved for and equipped with LED substitute light sources are allowed only when the statement of paragraph 3.2.6. is present and positive.
- All the stop lamps must light up simultaneously when the braking system provides the braking signal defined in UN Regulation No. 78.
- For each pair of rear position lamps, the horizontal angle may be 80° outwards and 20° inwards, instead of 45° inwards.
- Why
- The LED proposal was prepared to introduce requirements for LED substitute light sources into UN Regulations Nos. 48, 53, 74 and 86.
- The stop lamp proposal aims to allow different stop lamp activation methods and to align the stop lamp provisions with those for four-wheelers.
- The visibility proposal harmonizes Regulations Nos. 50 and 53 for the inward geometric visibility requirement for rear position lamps.
Q1What changed21 changes
Lamps approved for and equipped with LED substitute light sources (paras. 3.2.6. and 5.22.)
At the discretion of the manufacturer, new paragraph 3.2.6. adds a statement on lamps approved for and equipped with LED substitute light sources. The statement says whether these lamps are allowed to be installed on the vehicle and, if this is allowed, which lamps. New paragraph 5.22. allows the use of these lamps only when this statement is present and positive. The presence of the related marking on the lamps must be checked at type approval and in the conformity of production verification. New item 9.23. of Annex 1 gives this yes/no answer; a new footnote says to list the applicable lamps if yes. Paragraph 3.2.5. now starts “A statement of the method …”, instead of “The application shall include a statement of the method …”.
Stop lamp activation (paras. 6.4.6.1. and 6.4.6.2.)
All the stop lamps must now light up simultaneously when the braking system provides the braking signal defined in UN Regulation No. 78. Before this supplement, all stop lamps had to light up simultaneously at any service brake application. New paragraph 6.4.6.2. is about the device which starts and/or stops the engine (propulsion system). When this device is in a position that makes it impossible for the engine (propulsion system) to operate, the stop lamps need not function.
Inward horizontal angle for pairs of rear position lamps (para. 6.7.4.)
For each pair of rear position lamps, the horizontal angle may now be 80° outwards and 20° inwards. Before this supplement, it was 80 degrees outwards and 45° inwards for each pair of lamps. The text now writes “80°” instead of “80 degrees”.
Definitions (paragraph 2.)
Paragraph 2.19. now defines “Device” as a component or combination of components used to perform one or several functions. The definitions of “Bend lighting”, “H plane”, “Sequential activation” and “Emergency stop signal” are deleted from this Regulation. Paragraph 2.20. now defines “Exterior courtesy lamp”. In paragraphs 2.5.1. and 2.5.2., the list of lamps in brackets now ends with a closing bracket.
New item (j) in paragraph 6.1.1.2.: Class CS of UN Regulation No. 149
Paragraph 6.1.1.2. is for motorcycles having a cylinder capacity > 125 cm3. Its list “Two of approved type according to:” now also has new item (j), “Class CS of UN Regulation No. 149”. Items (g) and (i) now end with a semicolon, and item (h) now ends with a full stop.
Q2Why it changed
- Proposed by
- Expert from the International Motorcycle Manufacturers Association (IMMA); Informal Working Group on Simplification of Lighting and Light-Signalling Regulations (IWG SLR); Task Force on Substitutes and Retrofits (TF SR)
- Working party
- GRE, 79th session (April 2018) and 80th session (October 2018)
Reasons
The LED proposal was prepared to introduce requirements for LED substitute light sources into UN Regulations Nos. 48, 53, 74 and 86.
Sources (2)
“to introduce requirements for light emitting diode (LED) substitute light sources into UN Regulations Nos. 48, 53, 74 and 86”
“To introduce requirements for LED substitute light sources in the installation UN Regulations, the expert from Germany presented collective amendments to UN Regulations Nos. 48, 53, 74 and 86”
The stop lamp proposal aims to allow different stop lamp activation methods and to align the stop lamp provisions with those for four-wheelers. Paragraph 6.4.6.1. of the proposal is based on paragraph 6.7.7.1. of Regulation No. 48. Paragraph 6.4.6.2. is similar to paragraph 6.7.7.2. of Regulation No. 48.
Sources (2)
“The expert from IMMA introduced a revised proposal which allowed the use of different stop lamp activation methods and aligned the stop lamp provisions with those applicable for four-wheelers”
“paragraph 6.4.6.1. of the proposal is based on paragraph 6.7.7.1. of Regulation No. 48 and paragraph 6.4.6.2. is similar to paragraph 6.7.7.2. of Regulation No. 48.”
The visibility proposal harmonizes Regulations Nos. 50 and 53 for the inward geometric visibility requirement for rear position lamps. It is linked to a proposal for Regulation No. 50 (ECE/TRANS/WP.29/GRE/2018/27). That proposal aligns the visibility angles of rear position lamps with those of front position lamps.
Sources (2)
“This amendment harmonizes the provisions of Regulations Nos. 50 and 53 with regard to the inward geometric visibility requirement for rear position lamps.”
“It is linked to the correspondent proposal for amendments to Regulation No. 50 (ECE/TRANS/WP.29/GRE/2018/27) which aligns the angle of visibility requirements of rear position lamps with the angle of visibility requirements of front position lamps.”
The definition of “device” should not have been deleted, because its text is not identical to the definition in UN Regulation No. 48. The proposal is intended to restore it. To avoid unnecessary renumbering, it moves the definition to the end of paragraph 2., as paragraph 2.19.
Sources (3)
“The definition of "device" in UN Regulation No. 53 should not have been deleted, because its text is not identical to the definition provided in UN Regulation No. 48.”
“This proposal is intended to restore the original definition of "device" in UN Regulation No. 53.”
“In order to avoid unnecessary renumbering of sub-paragraphs, the definition for "device" has been moved to the end of paragraph 2., namely to 2.19.”
The definitions of “bend lighting”, “H plane”, “sequential activation” and “emergency stop signal” should be deleted, because they are identical to the definitions in UN Regulation No. 48.
Source
“The definitions of “bend lighting”, “H plane”, “sequential activation” and “emergency stop signal” should be deleted, because they are identical to the definitions provided in UN Regulation No. 48.”
Document trail
- 2018-02ProposalECE/TRANS/WP.29/GRE/2018/28Proposal by IMMA on the inward visibility of rear position lamps
- 2018-02ProposalECE/TRANS/WP.29/GRE/2018/29Revised proposal by IMMA on stop lamp activation
- —Working party adoptsECE/TRANS/WP.29/GRE/79GRE session report, para. 36: GRE adopted the stop lamp proposal
- 2018-08ProposalECE/TRANS/WP.29/GRE/2018/35Proposal by IWG SLR to correct the definitions
- 2018-08ProposalECE/TRANS/WP.29/GRE/2018/41Collective proposal by TF SR on LED substitute light sources, for UN Regulations Nos. 48, 53, 74 and 86
- —Amended in sessionGRE-80-05Corrigendum by IWG SLR to ECE/TRANS/WP.29/GRE/2018/35
- —Working party adoptsECE/TRANS/WP.29/GRE/80GRE session report, paras. 12, 15 and 18
- 2019-08Sent to WP.29ECE/TRANS/WP.29/2019/85Text that GRE sent to WP.29 and AC.1 for their November 2019 sessions
- 2019-11WP.29 adoptsECE/TRANS/WP.29/1149Adopted at the 179th session (session report, para. 116)
- 2020-05-29In forceC.N.240.2020.TREATIES-XI.B.16.53UN depositary notification
Q3Who is affected
Vehicle manufacturer
- At your discretion, state under paragraph 3.2.6. whether lamps approved for and equipped with LED substitute light sources are allowed.
- Without a positive statement under paragraph 3.2.6., do not use lamps approved for and equipped with LED substitute light sources.
- Switch on all stop lamps simultaneously when the braking system provides the braking signal defined in UN Regulation No. 78.
Component supplier
- Tell the vehicle manufacturer which of your lamps are approved for and equipped with LED substitute light sources.
Technical service / Approval authority
- Be ready to check, at type approval and conformity of production, the lamp marking related to LED substitute light sources.
- When checking the horizontal angle of each pair of rear position lamps, use 20° inwards instead of 45°.
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ⓘ This report gives advice only. It is not legal or type-approval advice.
More UN R53 change reports
- 04 series — Supplement 1
- 04 series — Base text
- 03 series — Supplement 5
- 03 series — Supplement 4
- 03 series — Supplement 3
- 03 series — Supplement 2
- 03 series — Supplement 1
- 03 series — Base text
- 02 series — Supplement 7
- 02 series — Supplement 6
- 02 series — Supplement 5
- 02 series — Supplement 4
- 02 series — Supplement 2