UN R125 Base text (03 series) · UNECE Regulation No. 125 (ECE R125) — Uniform provisions concerning the approval of motor vehicles with regard to the forward field of vision of the motor vehicle driver.
UN R125 — 03 series of amendments
Changes from 02 series of amendments (supplement 3)
- What changed
- Under paragraph 5.1.3.5., information of a Field of Vision Assistant that meets UN Regulation [XXX] may overlay the transparent field of vision of paragraph 5.1.1. Paragraphs 5.1.3.5.1. to 5.1.3.7. and Annex 5 are deleted.
- From 1 September 2026, Contracting Parties applying this Regulation are not obliged to accept approvals to the preceding series first issued after 1 September 2026. Under paragraph 12.16., Contracting Parties applying this Regulation must continue to accept preceding-series approvals for vehicle types not equipped with FVA.
- Paragraphs 2.3., 2.5. to 2.7., 2.9. and 2.10. and Annex 3, footnote 1, now refer to Addendum 6 of Mutual Resolution No. 1 (M.R.1).
- Why
- IWG-FVA developed a new UN Regulation on Field of Vision Assistants for all vehicle categories M and N. It replaces the specific FVA requirements that the 02 series of amendments introduced for M1 and N1 vehicles.
- The FVA provisions in the new UN Regulation are more specific and detailed, so existing vehicle types need a transitional period.
- The specifications of the 3-D “H”-point machine were updated and moved from R.E.3 to M.R.1.
Q1What changed41 changes
Field of Vision Assistant information (paras 5.1.3.5. to 5.1.3.7.)
Under paragraph 5.1.3.5., information of a Field of Vision Assistant that meets UN Regulation [XXX] may overlay the transparent field of vision of paragraph 5.1.1. Before, paragraphs 5.1.3.5.1. to 5.1.3.5.5. and 5.1.3.6. applied to FVA information overlaid in the transparent field of vision and above and beside area S. Paragraphs 5.1.3.5.1. to 5.1.3.7. and the text between them are deleted. The deleted paragraphs covered the light intensity of the FVA, its switch-off by the driver and information to the driver mandated by any UN Regulations.
Annex 5 (Field of view assistant) deleted
Annex 5, with the title “Field of view assistant”, is deleted. It gave examples for Warning / Highlight / Information, for example “Oncoming traffic in turning manoeuvres” and “Pedestrians”.
FVA and obstructions in area “S” from opaque pixels (para. 5.1.3.4.)
A new sentence in paragraph 5.1.3.4. says that, with regard to FVA, if applicable, potential obstructions in area “S” from opaque pixels must be considered. Opaque pixels are as defined in paragraph 2.19. of UN Regulation [XXX], 00 series of amendments. The earlier text of the paragraph, with the 20 per cent limit for area “S”, does not change.
Transitional provisions for the 03 series of amendments (paras 12.12. to 12.18.)
From the official entry into force of the 03 series, Contracting Parties applying this Regulation must not refuse to grant or accept its approvals (12.12.). From 1 September 2026, they are not obliged to accept type approvals to the preceding series first issued after 1 September 2026 (12.13.). Until 1 September 2030, they must accept type approvals to the preceding series first issued before 1 September 2026 (12.14.). From 1 September 2030, they are not obliged to accept type approvals issued to the preceding series (12.15.). Notwithstanding paragraphs 12.13. and 12.15., they must continue to accept preceding-series approvals for vehicle types not equipped with FVA (12.16.). Former paragraphs 12.12. and 12.13. are renumbered as paragraphs 12.17. and 12.18.
References to Addendum 6 of M.R.1 (paras 2.3., 2.5. to 2.7., 2.9. and 2.10.)
Paragraphs 2.5. to 2.7., 2.9. and 2.10. now refer to Addendum 6 of Mutual Resolution No. 1 (M.R.1). Before, they referred to Annex 1 of the revised Consolidated Resolution on the Construction of Vehicles (R.E.3). In paragraph 2.3., the procedure for situating the vehicle relative to the grid is now specified in Addendum 6 of M.R.1 instead of Annex 4. The reference “(see Annex 4, Appendix, Figure 6)” in paragraph 2.3. is deleted. Paragraphs 2.4. and 2.8. are restated with the same words.
Footnotes on Addendum 6 of M.R.1 and Revision 2 of R.E.3
A new footnote gives the document of Addendum 6 of M.R.1, ECE/TRANS/WP.29/1101/Amend.5. Annex 3, footnote 1, now says that the procedure is described in Addendum 6 of M.R.1. Before, it referred to Annex 1 to the Consolidated Resolution on the Construction of Vehicles. The footnote “Revision 2 of R.E.3 is available as document ECE/TRANS/WP.29/78/Rev.2 as amended” is deleted.
Approval mark examples for the 03 series of amendments (Annex 2)
The example approval marks in Annex 2 now show the approval number 030185. The first two digits of the approval number now show approval to UN Regulation No. 125 as amended by the 03 series of amendments. Before, the text referred to the 02 series of amendments. The Annex 2 title now reads “Arrangements of the approval marks”.
Q2Why it changed
- Proposed by
- Informal Working Group on Field of Vision Assistant
- Working party
- GRSG, 127th session (April 2024)
Reasons
IWG-FVA developed a new UN Regulation on Field of Vision Assistants for all vehicle categories M and N. It replaces the specific FVA requirements that the 02 series of amendments to UN Regulation No. 125 introduced for M1 and N1 vehicles.
Source
“IWG-FVA developed a new UN Regulation on Field of Vision Assistants, applicable to all vehicle categories M and N, and replacing the specific requirements introduced on FVA in UN Regulation 125, 02 series of Amendments for M1 and N1 vehicles.”
For this reason, the transitional provisions are aligned with the entry into force of the new UN Regulation. The specific FVA requirements are taken out of this Regulation.
Source
“The transitional provisions in this Regulation are therefore aligned with the entry into force of the new UN Regulation and the specific FVA requirements in this Regulation are taken out.”
The FVA provisions in the new UN Regulation are more specific and detailed. For this reason, existing vehicle types need a transitional period.
Source
“Since the provisions on FVA in the new Regulation are more specific and detailed, a transitional period is required for existing vehicle types.”
The specifications of the 3-D “H”-point machine were updated and moved from R.E.3 to M.R.1.
Source
“The specifications of the 3-D "H"-point machine have been updated and transferred from R.E.3. to M.R.1.”
A calibration procedure was also added. This is to make sure that the 3-D “H” point machine used for all testing in UN Regulations and UN Global Technical Regulations is consistent. This is also to make sure that the machine gives consistent test results across Regulations.
Source
“A calibration procedure has also been added to ensure that the 3-D "H" point machine used for all testing in UN Regulations and UN Global Technical Regulations is consistent and provides consistent test results across Regulations.”
Document trail
- 2024-01ProposalECE/TRANS/WP.29/GRSG/2024/23Proposal by the Informal Working Group on Field of Vision Assistant
- —RevisedGRSG-127-22-Rev.1Changes to ECE/TRANS/WP.29/GRSG/2024/23 for the 127th GRSG session
- —Working party adoptsECE/TRANS/WP.29/GRSG/106Session report, para. 37
- 2024-08Sent to WP.29ECE/TRANS/WP.29/2024/97Text that GRSG sent to WP.29 and AC.1
- 2024-11WP.29 adoptsECE/TRANS/WP.29/1181Adopted at the 194th session (session report, para. 158)
- 2025-06-12In forceC.N.328.2025.TREATIES-XI.B.16.125UN depositary notification
Q3Who is affected
Vehicle manufacturer
- If FVA information overlays the transparent field of vision, make sure that the FVA meets UN Regulation [XXX] (paragraph 5.1.3.5.).
- With regard to FVA, if applicable, include potential obstructions in area “S” from opaque pixels in the paragraph 5.1.3.4. check.
- For vehicle types equipped with FVA, check the dates in paragraphs 12.13. and 12.15. when you plan approvals.
- Use the procedure in Addendum 6 of M.R.1 to situate the vehicle relative to the three-dimensional reference grid (paragraph 2.3.).
Component supplier
- If your FVA information overlays the transparent field of vision, make sure the FVA meets UN Regulation [XXX] (paragraph 5.1.3.5.).
- Be ready to give the vehicle manufacturer data on opaque pixels of the FVA in area “S” (paragraph 5.1.3.4.).
Technical service / Approval authority
- When you check paragraph 5.1.3.4., consider, with regard to FVA, if applicable, potential obstructions in area “S” from opaque pixels.
- Use the definitions in Addendum 6 of M.R.1 for the “R” point and the “H” point (paragraphs 2.9. and 2.10.).
- Remove deleted paragraphs 5.1.3.5.1. to 5.1.3.7. from your test procedures for this Regulation.
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ⓘ This report gives advice only. It is not legal or type-approval advice.