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Latest Documents

12 Sep 2025 | GTR 22: Comments on Part A and Part C verifications | EVE-88-18
12 Sep 2025 | UN R177: Proposal to amend document GRPE/2025/21 | EVE-88-17
12 Sep 2025 | Heavy-duty EV battery durability: Comments on Annex 3 | EVE-88-15
12 Sep 2025 | Heavy EV battery durability: SOC definition and vehicle selection fe...
12 Sep 2025 | UN R177: "System Bench Test" Text Proposal | EVE-88-16
12 Sep 2025 | Electric Vehicles and the Environment: Agenda for the 88th (Septembe...
11 Sep 2025 | GTR 21: "System Bench Test" results and update | EVE-88-13
11 Sep 2025 | GTR 21: Comment on FCEV procedure | EVE-88-12
(27 posted during the past week)
GTR 22: Comments on Part A and Part C verifications
Reference Number: EVE-88-18
Submitted by: OICA
Document date: 12 Sep 25
Relevant to
GTR No. 22 | Electrified Vehicle Battery Durability
Download from UNECE: .pdf format
UN R177: Proposal to amend document GRPE/2025/21
Reference Number: EVE-88-17
Submitted by: Japan
Document date: 12 Sep 25
Relevant to
UN Regulation No. 177 | Electrified vehicle power determination
View full document file for more information
Download from UNECE: .docx format
Heavy-duty EV battery durability: Comments on Annex 3
Reference Number: EVE-88-15
Submitted by: Japan
Document date: 12 Sep 25
Relevant to
WP.29 Regulatory Project | Heavy-Duty Electric Vehicle Battery Durability
Download from UNECE: .pdf format
Heavy EV battery durability: SOC definition and vehicle selection feedback on Japan annex 3 comment
Reference Number: EVE-88-14
Submitted by: OICA
Document date: 12 Sep 25
Relevant to
WP.29 Regulatory Project | Heavy-Duty Electric Vehicle Battery Durability
Download from UNECE: .pdf format
UN R177: "System Bench Test" Text Proposal
Reference Number: EVE-88-16
Submitted by: Japan
Document date: 12 Sep 25
Relevant to
UN Regulation No. 177 | Electrified vehicle power determination
Download from UNECE: .pdf format
Electric Vehicles and the Environment: Agenda for the 88th (September 2025) session
Reference Number: EVE-88-02
Document date: 12 Sep 25
Relevant to
GTR No. 21 | Electric Vehicle System Power Determination, GTR No. 22 | Electrified Vehicle Battery Durability, and WP.29 Regulatory Project | Heavy-Duty Electric Vehicle Battery Durability
Download from UNECE: .pdf format
GTR 21: "System Bench Test" results and update
Reference Number: EVE-88-13
Submitted by: Japan
Document date: 11 Sep 25
Relevant to
GTR No. 21 | Electric Vehicle System Power Determination
Download from UNECE: .pdf format
GTR 21: Comment on FCEV procedure
Reference Number: EVE-88-12
Submitted by: Japan
Document date: 11 Sep 25
Relevant to
GTR No. 21 | Electric Vehicle System Power Determination
View full document file for more information
Download from UNECE: .pdf format

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Proposal for the 01 series of amendments to Regulation No. 121

Proposal for transitional provisions concerning the electronic stability control telltale and approval markings related to UN R121.

Reference Number: WP.29/2012/30
Meeting Session(s): 156th WP.29 session (13-16 Mar 2012)
Document date: 27 Dec 11
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
View full document file for more information
Download from UNECE: .pdf format
Proposal for Supplement 9 to Regulation No. 121

Proposal to enable the use of alternate colors (per footnote 18 of Table 1 and in line with ISO Standard 2575) for certain lighting tell-tales in order to indicate light source failures in response to the proposals for light failure indicators under UN Regulations Nos. 7, 48 and 87 (GRE/2016/7, GRE/2016/12 and GRE/2016/17) as adopted by GRE. This proposal anticipates use of the same approach in response to plans for additional failure indication requirements for other lighting regulations.

Reference Number: WP.29/2016/96
Meeting Session(s): 170th WP.29 session (15-18 Nov 2016)
Document date: 01 Sep 16
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
View full document file for more information
Download from UNECE: .pdf format .docx format
Proposal for Supplement 1 to the 01 series of amendments to Regulation No. 121

Proposal to enable the use of alternate colors (per footnote 18 of Table 1 and in line with ISO Standard 2575) for certain lighting tell-tales in order to indicate light source failures in response to the proposals for light failure indicators under UN Regulations Nos. 7, 48 and 87 (GRE/2016/7, GRE/2016/12 and GRE/2016/17) as adopted by GRE. This proposal anticipates use of the same approach in response to plans for additional failure indication requirements for other lighting regulations.

Reference Number: WP.29/2016/97
Meeting Session(s): 170th WP.29 session (15-18 Nov 2016)
Document date: 01 Sep 16
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
View full document file for more information
Download from UNECE: .pdf format .docx format
Proposal for Supplement 8 to Regulation No. 121

Proposal as adopted by the Working Party on General Safety Provisions (GRSG) at its 102nd session to add “A” and “AUTO” symbols for automatic systems and to apply ISO alert color coding (degree of danger hierarchy) to symbols 25 and 28 (brake system malfunction and parking brake, respectively).

This proposal is considered to be adopted and are binding upon all Contracting Parties applying Regulation No. 121 as of 15 July 2013.

Reference Number: WP.29/2012/94
Meeting Session(s): 158th WP.29 session (13-16 Nov 2012)
Document date: 24 Aug 12
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
View full document file for more information
Download from UNECE: .pdf format
Proposal for Supplement 7 to Regulation No. 121
Reference Number: WP.29/2012/26
Meeting Session(s): 156th WP.29 session (13-16 Mar 2012)
Document date: 27 Dec 11
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2012/26) was adopted by the World Forum. Thirty-four Contracting Parties out of the 46 applying UN R121 were present for the vote by AC.1. Thirty-four voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format
Proposal for Supplement 6 to Regulation No. 121
Reference Number: WP.29/2011/112
Meeting Session(s): 155th WP.29 session (15-18 Nov 2011)
Document date: 02 Aug 11
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2011/112) was adopted by the World Forum. Thirty-four Contracting Parties out of the 46 applying UN R121 were present for the vote by AC.1. Thirty-four voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format
Proposal for Supplement 5 to Regulation No. 121
Reference Number: WP.29/2011/38
Meeting Session(s): 153rd WP.29 session (8-11 Mar 2011)
Document date: 23 Dec 10
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Download from UNECE: .pdf format
UN R121: Proposal for Supplement 10

Proposal to apply footnote 18 to the symbol for tell-tale No. 1 (master lighting switch) in order to simplify the treatment of colour changes of tell-tales. Footnote 18 specifies "“Symbol may be shown in other colours than specified in column 5 in order to convey different meanings according to the general colour coding as proposed in paragraph 5. of ISO 2575-2004.” This proposal clarifies the existing understanding of the intent of the regulation and in particular addresses concerns over interpretation where tell-tales Nos. 1 and 19 have been combined.

Reference Number: WP.29/2018/25
Meeting Session(s): 174th WP.29 session (12-16 Mar 2018)
Document date: 28 Dec 17
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2018/25) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 51 applying UN R121 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R121: Proposal for Supplement 3 to the 01 series of amendments

Proposal to apply footnote 18 to the symbol for tell-tale No. 1 (master lighting switch) in order to simplify the treatment of colour changes of tell-tales. Footnote 18 specifies "“Symbol may be shown in other colours than specified in column 5 in order to convey different meanings according to the general colour coding as proposed in paragraph 5. of ISO 2575-2004.” This proposal clarifies the existing understanding of the intent of the regulation and in particular addresses concerns over interpretation where tell-tales Nos. 1 and 19 have been combined.

Reference Number: WP.29/2018/26
Meeting Session(s): 174th WP.29 session (12-16 Mar 2018)
Document date: 28 Dec 17
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2018/26) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 51 applying UN R121 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
Proposal for Supplement 2 to the 01 series of amendments to UN Regulation No. 121

Proposal to add a telltale and symbols for “Accident Emergency Call System (AECS)” and to align UN R121 with the 07 series of amendments to UN Regulation No. 16:

  1. the term “seat belt” is replaced by “safety belt”,
  2. the symbol for safety belt, defined in item 21 of Table 1 in the Regulation, may be displayed in different colours to convey different meanings. Therefore, the existing footnote 18 has been added to item 21, and
  3. this symbol may be replaced by different symbols for seats other than those of the front row. Therefore, a new footnote 22 is added to item 21.
In addition, paragraph 5.1.5. is modified and paragraph 5.1.7. introduced to take into consideration the content of GRSP/59, page 24, regarding paragraphs 8.4.3.2.1. and 8.4.4. on safety-belt reminders for occupants of rear seat row(s). This proposal does not change any of the technical requirements of UN R121.

Reference Number: WP.29/2017/116
Meeting Session(s): 173rd WP.29 session (14-17 Nov 2017)
Document date: 18 Aug 17
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2017/116), as corrected by its Corr.1, was adopted by the World Forum. Thirty-seven Contracting Parties out of the 51 applying UN R121 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
Proposal for Supplement 2 to the 01 series of amendments to UN Regulation No. 121

Proposal from the WP.29 Secretariat for additional corrections to the table of tell-tales, concerning items 31 (Combustion
pre-heat; engine start aid) and 32 (Choke (cold starting device)).

Reference Number: WP.29/2017/116/Corr.1
Meeting Session(s): 173rd WP.29 session (14-17 Nov 2017)
Document date: 14 Sep 17
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2017/116/Corr.1) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 51 applying UN R121 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R121: Proposal for Supplement 4 to the 01 series of amendments

Proposal in line with ISO 2575 to allow for the use of different colors (e.g., red, yellow, green) to convey the status modes (e.g., failure, active) of seven functions via modification of footnote 18 under Table 1.

Reference Number: WP.29/2020/22
Meeting Session(s): 180th WP.29 session (9-12 Mar 2020)
Document date: 18 Dec 19
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2020/22) was adopted by the World Forum. Thirty-nine Contracting Parties out of the 54 applying UN R121 were present for the vote by AC.1. Thirty-nine voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R121: Proposal for Supplement 5 to the 01 series of amendments

Proposal to apply the same tell-tale requirements for tyre pressure refill systems (TPRS) and central tyre inflation systems (CTIS) as already in place for tyre pressure monitoring systems (TPMS).

Reference Number: WP.29/2022/22
Meeting Session(s): 186th WP.29 session (7-11 Mar 2022)
Document date: 22 Dec 21
Document status: Adopted by WP.29
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2022/22), as amended by para. 82 of the session report, was adopted by the World Forum. Thirty-eight Contracting Parties out of the 54 applying UN R121 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and one abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R121: Proposal for Supplement 6 to the 01 series of amendments

Proposal to clarify that the indicators, their identifications and the identifications of controls need not be illuminated when it is bright enough outside of the vehicle such as when daytime running lamps are operated.

Reference Number: WP.29/2023/21
Meeting Session(s): 189th WP.29 session (6-9 Mar 2023)
Document date: 22 Dec 22
Document status: Adopted by WP.29
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R121: Proposal for a Supplement 7 to the 01 series of amendments

Proposal to clarify that indicators, their identifications, and the identifications of controls need not be illuminated when the driver intentionally deactivates illumination and the electric vehicle is not in driving conditions.

Reference Number: WP.29/2025/108
Meeting Session(s): 197th WP.29 session (17-21 Nov)
Document date: 26 Aug 25
Document status: Formal WP.29 review
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
View full document file for more information
Download from UNECE: .pdf format .docx format
Proposal for Supplement 4 to Regulation No. 121
Reference Number: WP.29/2010/116
Meeting Session(s): 152nd WP.29 session (9-12 Nov 2010)
Document date: 05 Aug 10
Document status: Adopted text published
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators
Adoption Vote
This proposal (WP.29/2010/116) was adopted by the World Forum. Thirty-four Contracting Parties out of the 44 applying UN R121 were present for the vote by AC.1. Thirty-four voted in favor with zero against and zero abstaining.
Download from UNECE: .pdf format
UN R121: Proposal for a Supplement 8 to the 01 series of amendments

Proposal from the GRSG task force on Automated Vehicles Regulation Screening to enable application of UN R121 to ADS vehicles, including the exemption of vehicles of subcategory Y from the requirements of the Regulation.

Reference Number: GRSG/2025/34
Submitted by: Netherlands
Meeting Session(s): 130th GRSG session (6-9 Oct)
Document date: 18 Jul 25
Document status: Formal GR review
Regarding:
UN R121 Hand Controls, Tell-tales and Indicators |
Regulation Screening for ADS
Download from UNECE: .pdf format .docx format
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UN Regulation No. 121
Location and Identification of Hand Controls, Tell-tales and Indicators
Series, Supplements, and Corrigenda
Supplement 4
Supplement 5
Supplement 6
Supplement 7
Supplement 8
Supplement 9
Supplement 10
01 series of amendments
Supplement 1
Supplement 2
Supplement 3
Supplement 4
Supplement 5
Supplement 6
Supplement 7
Supplement 8
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