UN R58 Supplement 4 (03 series) · UNECE Regulation No. 58 (ECE R58) — Uniform provisions concerning the approval of: I. Rear underrun protective devices (RUPDs) II. Vehicles with regard to the installation of an RUPD of an approved type III. Vehicles with regard to their rear underrun protection (RUP).

UN R58 — Supplement 4 to the 03 series of amendments

Supplement 3 → 4

Adopted at the WP.29 199th sessionEntry into force not yet known

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What changed: New paragraphs 0. to 0.1.2. add an Introduction on vehicles of categories X and Y and on vehicles with an ADS.
For vehicles with no driver's place, the adjustable RUPD label must be at the rear of the vehicle, at an easily visible location.
In a vehicle without “driver/manual driving controls”, provisions related to them must not be taken into account, unless this amendment already covers them.
Why: The UN Regulation was originally drafted for vehicles with a driver and manual driving controls.
The amendment intends to extend the application of the UN Regulation to vehicles without a driver and without manual driving controls inside the vehicle.
The proposal follows the common recommendations of the TF-AVRS activities, coordinated with the subsidiary bodies of WP.29.

Q1What changed9 changes

New Introduction: the purpose of Supplement 4 (paras 0. and 0.1.)

New paragraph 0. adds an Introduction to the Regulation. Paragraph 0.1. says that Supplement 4 is introduced to take into account vehicles of categories X and Y. It is also introduced to take into account vehicles with an Automated Driving System (ADS) and a manual mode operating at speeds above 6 km/h. Before this supplement, the Regulation had no paragraph 0.

Introduction

Supplement 4 to the 03 series of amendments is introduced to take into account vehicles of categories X and Y, as well as vehicles with a manual mode operating at speeds above 6 km/h which are equipped with an Automated Driving System (ADS).

Vehicles without a driver and manual driving controls (para. 0.1.1.)

Paragraph 0.1.1. says that the UN Regulation was originally drafted for vehicles with a driver and manual driving controls. The amendment intends to keep the spirit of the UN Regulation. It also intends to extend the application of the UN Regulation to vehicles without a driver and without manual driving controls inside the vehicle. In a vehicle without “driver/manual driving controls”, provisions related to them must not be taken into account, unless this amendment already covers them.

The UN Regulation was originally drafted for vehicles with driver and manual driving controls. It is the intention of this amendment to keep the spirit of the UN Regulation and to extend its application to vehicles without driver and without manual driving controls inside the vehicle. In the absence of driver/manual driving controls in the vehicle, provisions related to them shall not be taken into account if not already covered by this amendment.

Place of the label for an adjustable RUPD, and vehicles with an ADS (paras 0.1.2. and 16.7.)

Paragraph 16.7. now adds “(if any)” after “the driver's place”, one of the two places for the label of an adjustable RUPD. Paragraph 16.7. also writes the term in full: “Rear Underrun Protective Device (RUPD)”. For vehicles with no driver's place, new paragraph 0.1.2. requires the label at the rear of the vehicle, at a location easily visible. The driving system of the vehicle (ADS feature active or not) does not affect this label requirement. For vehicles with an ADS, other than vehicles of categories X and Y, no special provisions or exemptions apply in the manual driving mode.

In case of vehicles equipped with an ADS other than vehicles of categories X and Y, in the manual driving mode no special provisions or exemptions apply. For vehicles with no driver’s place, In this case, the second option proposed by the current text of paragraph 16.7. of the UN Regulation shall apply, i.e. the label must be placed at the rear of the vehicle, at a location easily visible. This later requirement is not affected by the driving system (ADS feature active or not) of the vehicle.

Given the provisions of paragraph 7.2. for adjustable Rear Underrun Protective Device (RUPD ) the label shall be placed clearly and permanently visible at the driver's place (if any) or at the rear area of the vehicle next to the RUPD, at a location, which is easily visible.

References to R.E.3 in the footnotes (paras 1., 6.4.1., 15.4.1. and 24.4.1.)

Footnote 1 to paragraph 1. now gives document ECE/TRANS/WP.29/78/Rev.8 for the Consolidated Resolution on the Construction of Vehicles (R.E.3.). Before, it gave paragraph 2 of document ECE/TRANS/WP.29/78/Rev.6. The footnotes to paragraphs 6.4.1., 15.4.1. and 24.4.1. still refer to Annex 3 to R.E.3 for the distinguishing numbers of the Contracting Parties. They now give document ECE/TRANS/WP.29/78/Rev. 8 instead of ECE/TRANS/WP.29/78/Rev. 6. All four footnotes now give a new web address.

As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3), .), document ECE/TRANS/WP.29/78/Rev.6, para. 2 - www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.htmlECE/TRANS/WP.29/78/Rev.8 - https://unece.org/transport/vehicle-regulations/wp29/resolutions

The distinguishing numbers of the Contracting Parties to the 1958 Agreement are reproduced in Annex 3 to the Consolidated Resolution on the Construction of Vehicles (R.E.3), document ECE/TRANS/WP.29/78/Rev. 68, Annex 3 - www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.htmlhttps://unece.org/transport/vehicle-regulations/wp29/resolutions

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Q2Why it changed

Proposed by: Expert from the Kingdom of the Netherlands on behalf of the Task Force on Automated Vehicles Regulatory Screening (TF-AVRS)
Working party: GRSG, 130th session (October 2025)

Reasons

Supplement 4 is introduced to take into account vehicles of categories X and Y. It is also introduced to take into account vehicles with an ADS and a manual mode operating at speeds above 6 km/h.
Sources (2)
“Supplement 4 to the 03 series of amendments is introduced to take into account vehicles of categories X and Y”
ECE/TRANS/WP.29/2026/109para. 0.1.
“as well as vehicles with a manual mode operating at speeds above 6 km/h which are equipped with an Automated Driving System (ADS)”
ECE/TRANS/WP.29/2026/109para. 0.1.
The UN Regulation was originally drafted for vehicles with a driver and manual driving controls. The amendment intends to keep the spirit of the UN Regulation. It also intends to extend the application of the UN Regulation to vehicles without a driver and without manual driving controls inside the vehicle.
Sources (2)
“The UN Regulation was originally drafted for vehicles with driver and manual driving controls.”
ECE/TRANS/WP.29/2026/109para. 0.1.1.
“It is the intention of this amendment to keep the spirit of the UN Regulation and to extend its application to vehicles without driver and without manual driving controls inside the vehicle.”
ECE/TRANS/WP.29/2026/109para. 0.1.1.
This proposal is one of the TF-AVRS proposals that update UN Regulations. They follow the common recommendations of the TF-AVRS activities, coordinated with the subsidiary bodies of WP.29.
Source
“on behalf of the Task Force on Automated Vehicles Regulatory Screening (TF-AVRS) introduced proposals of amendments updating the regulations (ECE/TRANS/WP.29/GRSG/2025/14 to 46) according to the common recommendations of the coordinated task force activities with the subsidiary bodies of WP.29”
ECE/TRANS/WP.29/GRSG/109para. 34

Document trail

2025-07ProposalECE/TRANS/WP.29/GRSG/2025/22Proposal submitted by the expert from the Kingdom of the Netherlands
—Working party adoptsECE/TRANS/WP.29/GRSG/109Session report, para. 34: GRSG adopted the proposal as amended
2026-04Sent to WP.29ECE/TRANS/WP.29/2026/109Text that GRSG sent to WP.29 and AC.1
—Amended in sessionWP.29-199-10Amendments for the AC.1 vote, reproduced in Annex VI of ECE/TRANS/WP.29/1192
2026-06-24WP.29 adoptsECE/TRANS/WP.29/1192Adopted at the 199th session (session report, para. 103)
PendingIn forceDate not yet known

Q3Who is affected

Vehicle manufacturer

On a vehicle with no driver's place, make sure that the adjustable RUPD label is at the rear (para. 0.1.2.). Also make sure that the location is easily visible.
For a vehicle without “driver/manual driving controls”, list the provisions that relate to these controls. Then find which of them this amendment already covers (para. 0.1.1.).
Update your documents that quote paragraph 16.7. to the new text.

Component supplier

No direct action for this role.

Technical service / Approval authority

On a vehicle with no driver's place, check that the adjustable RUPD label is at the rear (para. 0.1.2.). Also check that the location is easily visible.
For a vehicle without “driver/manual driving controls”, leave out the related provisions that this amendment does not already cover (para. 0.1.1.).
Apply no special provisions or exemptions in the “manual driving mode” of ADS vehicles, other than categories X and Y (para. 0.1.2.).

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

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