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UN R37 Supplement 49 (03 series) · UNECE Regulation No. 37 (ECE R37) — Uniform provisions concerning the approval of filament light sources for use in approved lamps of power-driven vehicles and of their trailers.

UN R37 — Supplement 49 to the 03 series of amendments

Supplement 48 → 49

Adopted at the WP.29 192nd sessionEntry into force 2024-09-22
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What changed
  • Paragraph 3.3.3.3. now refers to IEC Publication 60809, Edition 4: 2021, instead of Edition 3.
  • The reference to IEC Publication 60809 applies to filament light sources for use in light-signalling devices.
  • The text on the Annex 5 measurement method, the chromaticity area and the Planckian locus does not change.
Why
  • A new edition of IEC Publication 60809 (Edition 4) has been published.
  • The UN Regulations on lighting, especially on light sources, should be reviewed for dated references to IEC Standards.
  • IEC proposed to add the year of publication (2021) to make the correct version of the standard easier to identify.

Q1What changed1 change

Edition of IEC Publication 60809 for filament light sources for use in light-signalling devices (para. 3.3.3.3.)

Filament light sources for use in light-signalling devices must meet the requirements of paragraph 4.4.2. of IEC Publication 60809, Edition 4: 2021. Before this supplement, the reference was to Edition 3. The words “light signalling” now have a hyphen. The text on the Annex 5 measurement method, the chromaticity area and the Planckian locus does not change.

The colour of the light emitted shall be measured by the method specified in Annex 5. Each measured value shall lie within the required chromaticity area. Moreover, in the case of filament light sources emitting white light, the measured values shall not deviate more than 0.020 unit in the x and/or y direction from a point of choice on the Planckian locus (CIE 015 :2018, 4th edition). Filament light sources for use in light signalling light-signalling devices shall meet the requirements as specified in paragraph 4.4.2. of IEC Publication 60809, Edition 34: 2021.
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Q2Why it changed

Proposed by
Expert from the International Automotive Lighting and Light Signalling Expert Group (GTB), with a correction by the expert from IEC
Working party
GRE, 89th session (October 2023)

Reasons

  • A new edition of IEC Publication 60809 (Edition 4) has been published. GTB proposed to amend paragraph 3.3.3.3. to reflect Edition 4, the latest edition.

    Sources (2)
    “This proposal includes a customary administrative update of an IEC normative reference, as a new edition of IEC Publication 60809 has been published (Edition 4).”
    “GTB proposes to amend paragraph 3.3.3.3. of UN Regulation No. 37 to reflect the latest edition of IEC Publication 60809, Edition 4.”

  • The UN Regulations on lighting, especially on light sources, should be reviewed for dated references to IEC Standards. The aim is to stay up to date with the latest developments.

    Source
    “The UN Regulations related to lighting, and especially those related to light sources, should be reviewed for dated references to IEC Standards in order to stay up-to-date with the latest developments.”

  • Proposer's reason (informal document GRE-89-20)

    IEC proposed to add the year of publication (2021) after the reference. The year makes it easier for the reader or user of this Regulation to identify the correct version of the standard.

    Submitted by IEC. Working party adoption: ECE/TRANS/WP.29/GRE/89, para. 14.

    Source
    “By adding the year of publication, i.e. 2021 after the reference, it is easier for the reader / user of this regulation to identify the correct version of the standard.”

Document trail

  1. 2023-08ProposalECE/TRANS/WP.29/GRE/2023/24Proposal by GTB
  2. —Amended in sessionGRE-89-20Correction to the GTB proposal by the expert from IEC
  3. —Working party adoptsECE/TRANS/WP.29/GRE/89Session report, para. 14
  4. 2023-12Sent to WP.29ECE/TRANS/WP.29/2024/17Text that GRE sent to WP.29 and AC.1
  5. 2024-03WP.29 adoptsECE/TRANS/WP.29/1177Adopted at the 192nd session (session report, para. 140)
  6. 2024-09-22In forceC.N.400.2024.TREATIES-XI.B.16.37UN depositary notification

Q3Who is affected

Vehicle manufacturer

  • No direct action for this role.

Component supplier

  • Compare paragraph 4.4.2. of IEC Publication 60809, Edition 4: 2021, with the same paragraph of Edition 3.
  • Make sure that your filament light sources for light-signalling devices meet paragraph 4.4.2. of IEC 60809, Edition 4: 2021.
  • Update your documents that refer to Edition 3 of IEC Publication 60809 for paragraph 3.3.3.3.

Technical service / Approval authority

  • Use paragraph 4.4.2. of IEC Publication 60809, Edition 4: 2021, for filament light sources for light-signalling devices.
  • Update your test texts and checklists that refer to Edition 3 of IEC Publication 60809 for paragraph 3.3.3.3.

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ⓘ This report gives advice only. It is not legal or type-approval advice.

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