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UN R74 Supplement 2 (02 series) · UNECE Regulation No. 74 (ECE R74) — Uniform provisions concerning the approval of category L1 vehicles with regard to the installation of lighting and light-signalling devices.

UN R74 — Supplement 2 to the 02 series of amendments

Supplement 1 → 2

Adopted at the WP.29 187th sessionEntry into force 2023-01-04
What changed
  • When a vehicle has secondary driving-beam(s) approved under UN Regulations Nos. 113 or 149, at least one listed lamp must stay switched ON with them.
  • Paragraph 6.2.1. now also lists headlamps of Class C or V of the 01 and subsequent series of amendments to UN Regulation No. 149.
Why
  • With the entry into force of the 01 series of amendments to UN Regulation No. 149, alternative references in UN Regulation No. 74 are necessary.
  • The activation provisions for secondary driving beams are equivalent to those already in UN Regulations Nos. 113 and 149.

Q1What changed7 changes

Lamps that stay switched ON with secondary driving beams (para. 6.1.7.)

When a vehicle has secondary driving-beam(s) approved under UN Regulations Nos. 113 or 149, at least one listed lamp must stay switched ON with them. The listed lamps include the passing-beam(s) and a primary driving beam approved under UN Regulations Nos. 113 or 149. The list also includes a driving-beam of Class A or B approved under the 01 and subsequent series of amendments to UN Regulation No. 149. This rule for secondary driving beams is new in this supplement. The sentence that lets the passing-beam(s) remain ON with the driving-beam(s) now says “switched ON” instead of “illuminated”.

The passing beam(spassing-beam(s) may remain illuminated switched ON with the driving beam(sdriving-beam(s).
However, when the vehicle is fitted with secondary driving-beam(s) approved in accordance with UN Regulations Nos. 113 or 149, at least one of the following lamps shall remain switched ON with the secondary driving beam(s):
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Class C or V headlamps of UN Regulation No. 149 (para. 6.2.1.)

Paragraph 6.2.1. now also lists headlamps of Class C or V of the 01 and subsequent series of amendments to UN Regulation No. 149. The entry for Class A, B, AS, BS, CS, DS or ES of UN Regulation No. 149 now ends with a semicolon.

Class C or V of the 01 and subsequent series of amendments to UN Regulation No. 149.
Class A, B, AS, BS, CS, DS or ES of UN Regulation No. 149.;
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Q2Why it changed

Proposed by
Informal Working Group on Simplification of Lighting and Light-Signalling Regulations
Working party
GRE, 85th session (October 2021)

Reasons

  • With the entry into force of the 01 series of amendments to UN Regulation No. 149, alternative references in UN Regulation No. 74 are necessary.

    Source
    “With the entry into force of the new 01 series of amendments to UN Regulation No. 149 produced by IWG SLR, it is necessary to introduce alternative references in UN Regulation No. 74.”
  • The proposal also brings into UN Regulation No. 74 the activation provisions for secondary driving beams. The activation provisions for secondary driving beams are equivalent to those already in UN Regulations Nos. 113 and 149.

    Source
    “This proposal also introduces in UN Regulation No. 74 the activation provisions for secondary driving beams, equivalent to those already laid down in UN Regulations Nos. 113 and 149.”

Document trail

  1. 2021-08ProposalECE/TRANS/WP.29/GRE/2021/21Proposal by IWG SLR
  2. —Working party adoptsECE/TRANS/WP.29/GRE/85GRE session report, para. 25
  3. 2022-04Sent to WP.29ECE/TRANS/WP.29/2022/102Text that GRE sent to WP.29 and AC.1
  4. 2022-06WP.29 adoptsECE/TRANS/WP.29/1166Adopted at the 187th session (session report, para. 182)
  5. 2023-01-04In forceC.N.481.2022.TREATIES-XI.B.16.74UN depositary notification

Q3Who is affected

Vehicle manufacturer

  • For secondary driving-beam(s) approved under UN Regulations Nos. 113 or 149, keep at least one listed lamp ON with them.
  • Add Class C or V headlamps of the 01 and subsequent series of UN Regulation No. 149 to your options.
  • Update your documents that quote the old words “may remain illuminated”.

Component supplier

  • Tell vehicle manufacturers whether your secondary driving-beam(s) have an approval under UN Regulations Nos. 113 or 149.
  • Give vehicle manufacturers the series of amendments of UN Regulation No. 149 for each Class C or V headlamp.

Technical service / Approval authority

  • Add the new switch-ON rule for secondary driving-beam(s) approved under UN Regulations Nos. 113 or 149 to your checks.
  • Add Class C or V headlamps of the 01 and subsequent series of UN Regulation No. 149 to your checklists.

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

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