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EDR/DSSAD Subgroup on EDR | Session 45 | 16 Dec
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Proposal for a new UN Regulation No. XXX on ISOFIX anchorage systems, ISOFIX top tether anchorages and i-Size seating positions
Reference Number: WP.29/2017/133

Proposal to consolidate provisions concerning ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions removed from Regulation No. 14 in a new regulation. This change removes obstacles to the inclusion of UN R14 into Annex 4 of the future UN Regulation No. 0 of the International Whole Vehicle Type Approval (IWVTA).

Meeting Sessions: 173rd WP.29 session (14-17 Nov 2017)
Document date: 24 Aug 17
Document status: Adopted text published
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2017/133) was adopted by the World Forum. Thirty-eight Contracting Parties to the 1958 Agreement 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 R145: Proposal for Corrigendum 1 to the original version
Reference Number: WP.29/2019/57

Proposal to update a reference regarding ISOFIX exemptions permitted under paragraph 5.3.8.8. (related to vehicles with one seat position per row). The reference should read 5.3.8.8. and 5.3.8.9.

Meeting Sessions: 178th WP.29 session (24-28 Jun 2019)
Document date: 10 Apr 19
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2019/57) was adopted by the World Forum. Forty Contracting Parties out of the 55 applying UN R145 were present for the vote by AC.1. Forty voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for Supplement 1 to the original version
Reference Number: WP.29/2021/126

Proposal from GRSP to clarify the requirements for the location of ISOFIX systems in case the vehicle type is equipped with rearward facing seats.

Meeting Sessions: 185th WP.29 session (23-26 Nov 2021)
Document date: 01 Sep 21
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2021/126) was adopted by the World Forum. Forty Contracting Parties out of the 56 applying UN R145 were present for the vote by AC.1. Thirty-eight voted in favor with zero against and two abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for Supplement 2
Reference Number: WP.29/2022/68

Proposal from GRSP to correct the vehicle type definition.

Meeting Sessions: 187th WP.29 session (20-24 Jun 2022)
Document date: 04 Apr 22
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for the 01 series of amendments
Reference Number: WP.29/2023/112

Proposal to introduce definitions, requirements and a test procedure for lower tether anchorages.

Meeting Sessions: 191st WP.29 session (13-16 Nov 2023)
Document date: 30 Aug 23
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2023/112), as amended by WP.29/2023/112/Corr.1, was adopted by the World Forum. Thirty-eight Contracting Parties out of the 57 applying UN R145 were present for the vote by AC.1. Thirty-eight voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Correction to document WP.29/2023/112
Reference Number: WP.29/2023/112/Corr.1
Meeting Sessions: 191st WP.29 session (13-16 Nov 2023)
Document date: 13 Oct 23
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2023/112/Corr.1) was adopted by the World Forum. Thirty-eight Contracting Parties out of the 57 applying UN R145 were present for the vote by AC.1. Thirty-eight voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Correction to document WP.29/2023/124
Reference Number: WP.29/2023/124/Corr.1
Meeting Sessions: 191st WP.29 session (13-16 Nov 2023)
Document date: 16 Oct 23
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2023/124/Corr.1) was adopted by the World Forum. Thirty-eight Contracting Parties out of the 57 applying UN R145 were present for the vote by AC.1. Thirty-eight voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for Supplement 3
Reference Number: WP.29/2023/124

Proposal to amend the provisions for the number of ISOFIX positions if a built-in CRS is installed in that position to reflect the size ranges used in UN R129.

Meeting Sessions: 191st WP.29 session (13-16 Nov 2023)
Document date: 31 Aug 23
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2023/124), as amended by WP.29/2023/124/Corr.1, was adopted by the World Forum. Thirty-eight Contracting Parties out of the 57 applying UN R145 were present for the vote by AC.1. Thirty-eight voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for a Corrigendum 2
Reference Number: WP.29/2025/132

Proposal to correct para. 6.2.5.1. (seat inertia forces) to specify application of UN R14 (not “this Regulation” as erroneously copied) for the anchorage load tests.

Meeting Sessions: 197th WP.29 session (10-14 Nov)
Document date: 19 Aug 25
Document status: Formal WP.29 review
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for Corrigendum 1 to the 01 series of amendments
Reference Number: WP.29/2025/133

Proposal to correct para. 6.2.5.1. (seat inertia forces) to specify application of UN R14 (not “this Regulation” as erroneously copied) for the anchorage load tests.

Meeting Sessions: 197th WP.29 session (10-14 Nov)
Document date: 20 Aug 25
Document status: Formal WP.29 review
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal for Supplement 1 to the 01 series of amendments
Reference Number: WP.29/2024/142

Proposal to update references to the three-dimensional “H” point measurement and calibration procedure pursuant to the transposition of these provisions from the Consolidated Resolution on the Construction of Vehicles (RE3) to Mutual Resolution No. 1.

Meeting Sessions: 194th WP.29 session (11-15 Nov 2024)
Document date: 28 Aug 24
Document status: Adopted by WP.29
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Adoption Vote
This proposal (WP.29/2024/142) was adopted by the World Forum. Thirty-nine Contracting Parties out of the 59 applying UN R145 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 R145: Proposal for a Supplement 2 to the 01 series of amendments
Reference Number: GRSP/2025/24

Proposal to enable application of the regulation to vehicles equipped with an Automated Driving System (ADS).

Meeting Sessions: 78th GRSP session (1-4 Dec)
Document date: 22 Sep 25
Document status: Formal GR review
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles
View full document file for more information
Download from UNECE: .pdf format .docx format
UN R145: Proposal to amend document GRSP/2025/24
Reference Number: GRSP-78-27
Meeting Sessions: 78th GRSP session (1-4 Dec)
Document date: 02 Dec 25
Document status: Formal GR review
Relevant to
UN Regulation No. 145 | ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles
View full document file for more information
Download from UNECE: .pdf format .docx format
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UN Regulation No. 145
ISOFIX anchorages systems, ISOFIX top tether anchorages and i-Size seating positions
Overseen by GRSP
Series, Supplements, and Corrigenda
Original text
Corrigendum 1
Corrigendum 2
Supplement 1
Supplement 2
Supplement 3
01 series of amendments
Corrigendum 1
Supplement 1
Supplement 2
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