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UN R153 Supplement 3 (00 series) · UNECE Regulation No. 153 (ECE R153) — Uniform provisions concerning the approval of vehicles with regard to fuel system integrity and safety of electric power train in the event of a rear-end collision.

UN R153 — Supplement 3 to the 00 series of amendments

Supplement 2 → 3

Adopted at the WP.29 190th sessionEntry into force 2024-01-05
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What changed
  • In the definition of “Vehicle type”, paragraphs 2.1.2., 2.1.7. and 2.1.9. now have the condition “in so far as they have an adverse effect on the results of the impact test”.
  • In paragraphs 2.1.1. and 2.1.3., “an effect” now reads “an adverse effect”.
  • In paragraphs 2.1.4., 2.1.5., 2.1.6. and 2.1.8., “adverse effect” replaces “negative effect”.
Why
  • The proposal aimed to extend the condition of an influence on the impact test results to all criteria in paragraph 2.1.
  • At the time of the proposal, several subparagraphs mentioned an effect on the results of the impact test, and other subparagraphs did not.
  • The proposal also aimed to clarify the text of the UN Regulation.

Q1What changed9 changes

Vehicle type: new “adverse effect” condition (paras. 2.1.2., 2.1.7. and 2.1.9.)

In the definition of “Vehicle type”, paragraphs 2.1.2. and 2.1.7. now end with “in so far as they have an adverse effect on the results of the impact test prescribed in this Regulation”. Paragraph 2.1.9. now ends with “in so far as they have an adverse effect on the results of the impact test prescribed in this UN Regulation”. Before this supplement, these three paragraphs had no “in so far as …” condition.

The structure, dimensions, lines and materials of the part of the vehicle rearward of the transverse plane through the "R" point of the rearmost seat in so far as they have an adverse effect on the results of the impact test prescribed in this Regulation.
The structure, shape, dimensions and materials (metal/plastic) of the tank(s).) in so far as they have an adverse effect on the results of the impact test prescribed in this Regulation.
1 more change in this group — open in Compare

Vehicle type: “effect” now “adverse effect” (paras. 2.1.1. and 2.1.3.)

In paragraphs 2.1.1. and 2.1.3., the words “in so far as they have an effect” now read “in so far as they have an adverse effect”. Paragraph 2.1.1. covers the length and width of the vehicle. Paragraph 2.1.3. covers the lines and inside dimensions of the passenger compartment.

The length and width of the vehicle in so far as they have an adverse effect on the results of the impact test prescribed in this Regulation.
The lines and inside dimensions of the passenger compartment in so far as they have an adverse effect on the results of the impact test prescribed in this Regulation.

Vehicle type: “negative effect” now “adverse effect” (paras. 2.1.4., 2.1.5., 2.1.6. and 2.1.8.)

In paragraphs 2.1.4., 2.1.5., 2.1.6. and 2.1.8., the word “adverse” replaces the word “negative” before “effect”. Paragraph 2.1.8. refers to an adverse effect on the requirements of paragraph 5.2.1.

The siting (front, rear or centre) and the orientation (transversal or longitudinal) of the engine, in so far as they have a negative an adverse effect on the result of the impact test procedure as prescribed in this Regulation.
The unladen mass, in so far as there is a negative an adverse effect on the result of the impact test prescribed in this Regulation.
2 more changes in this group — open in Compare
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Q2Why it changed

Proposed by
Expert from Germany
Working party
GRSP, 72nd session (December 2022)

Reasons

  • The proposal aimed to extend the condition of an influence on the results of the impact test to all criteria described under paragraph 2.1.

    Sources (2)
    “This proposal extends the condition of the necessity of an influence on the results of the impact test to all criteria described under paragraph 2.1.”
    “aimed at extending the condition of the necessity of an influence on the test results of the impact test to all criteria”

  • The criteria in paragraphs 2.1.1. to 2.1.9. are relevant to determining which variations of a vehicle can be covered under a single vehicle type. For these variations, it is not necessary to apply for a separate approval type. In the earlier text, several subparagraphs said differences only cause a new type of vehicle if they affect or negatively affect the impact test results. Other subparagraphs did not say this.

    Sources (3)
    “The text in paragraphs 2.1.1. to 2.1.9. defines criteria that are relevant to determining which variations of a vehicle can be covered under a single vehicle type without having to apply for a separate approval type.”
    “The current text contains several subparagraphs, which explicitly mention that the differences will only cause a new type of vehicle if the differences affect or negatively affect the results of the impact test”
    “described in this regulation, while other subparagraphs do not.”

  • The proposal also aimed to clarify the text of the UN Regulation.

    Source
    “The text reproduced below was prepared by the expert from Germany, aiming to clarify the text of the UN Regulation.”

Document trail

  1. —ProposalGRSP-69-07Informal document by the expert from Germany, distributed at the 69th GRSP session
  2. 2021-09ProposalECE/TRANS/WP.29/GRSP/2021/29Proposal by the expert from Germany, based on GRSP-69-07
  3. —Working party adoptsECE/TRANS/WP.29/GRSP/72GRSP session report, para. 40 and Annex VI
  4. 2023-03Sent to WP.29ECE/TRANS/WP.29/2023/56Text that GRSP sent to WP.29 and AC.1
  5. 2023-06WP.29 adoptsECE/TRANS/WP.29/1173Adopted at the 190th session (session report, para. 165)
  6. 2024-01-05In forceC.N.36.2024.TREATIES-XI.B.16.153UN depositary notification

Q3Who is affected

Vehicle manufacturer

  • No direct action for this role.

Component supplier

  • No direct action for this role.

Technical service / Approval authority

  • No direct action for this role.

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

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