| UN R24: Proposal for a Supplement 12 to the 03 series of amendments |
| Reference Number: GRPE/2026/18 |
|
Proposal to enable the approval of vehicles equipped with an Automated Driving System under this Regulation. |
| Meeting Sessions: 94th GRPE session (17-19 Mar) |
| Document date: 02 Jan 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for a Supplement 12 to the 03 series of amendments |
| Reference Number: GRPE-TF-AVRS-31-02/Rev.1 |
| Meeting Sessions: 31st GRPE-TF-AVRS session (10 Dec 2025) |
| Document date: 19 Dec 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Draft amendments to enable application to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-30-02 |
| Meeting Sessions: 30th GRPE-TF-AVRS session (27 Nov 2025) |
| Document date: 13 Nov 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Draft formal proposal to enable application to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-29-02 |
| Meeting Sessions: 29th GRPE-TF-AVRS session (5 Nov 2025) |
| Document date: 30 Oct 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Proposal for supplement {12} to 03 series of amendments |
| Reference Number: GRPE-93-17 |
|
Proposal to allow type approval of vehicles with ADS |
| Meeting Sessions: 93rd GRPE session (14-17 Oct 2025) |
| Document date: 13 Oct 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal of amendments to enable application to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-28-05/Rev.2 |
| Meeting Sessions: 28th GRPE-TF-AVRS session (13 Oct 2025) |
| Document date: 13 Oct 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Draft amendments to enable application to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-27-03 |
| Meeting Sessions: 27th GRPE-TF-AVRS session (26 Sep 2025) |
| Document date: 22 Sep 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Draft amendments to enable application to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-26-03/Rev.1 |
| Meeting Sessions: 26th GRPE-TF-AVRS session (26 Jun 2025) |
| Document date: 26 Jun 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Draft amendments to enable application to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-25-02 |
| Meeting Sessions: 25th GRPE-TF-AVRS session (12 Jun 2025) |
| Document date: 05 Jun 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Draft amendments to enable application to ADS vehicles |
| Reference Number: GRPE-AVRS-SGMA-02-01 |
| Submitted by: EC |
| Meeting Sessions: 2nd GRPE-AVRS-SGMA session (27 May 2025) |
| Document date: 27 May 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Screening for applicability to ADS vehicles |
| Reference Number: GRPE-AVRS-SGMA-01-02/Rev.1 |
| Submitted by: Netherlands |
| Meeting Sessions: 1st GRPE-AVRS-SGMA session (16 Apr 2025) |
| Document date: 27 May 25 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R : determination of system power of hybrid electric vehicles and of pure electric vehicles having more than one electric machine for propulsion |
| Reference Number: GRPE-91-19/Rev.1 |
|
Proposal for amendment to 2024/23, OICA proposal to transpose the content of UN GTR No. 21 into a new UN Regulation of the 1958 Agreement. |
| Submitted by: EC, Japan, and OICA |
| Meeting Sessions: 91st GRPE session (14-16 Oct 2024) |
| Document date: 11 Oct 24 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and GTR No. 21 | Electric Vehicle System Power Determination |
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| UN R24: Proposal for Supplement 11 to the 03 series of amendments | |
| Reference Number: WP.29/2023/126 | |
|
Proposal to clarify the wording regarding the use of the reference fuel required for emission testing, to permit testing with the same reference fuel used for emission testing, and to align with recently adopted amendments to Regulation No. 85. |
|
| Meeting Sessions: 191st WP.29 session (13-16 Nov 2023) | |
| Document date: 01 Sep 23 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2023/126) was adopted by the World Forum. Thirty-six Contracting Parties out of the 50 applying UN R24 were present for the vote by AC.1. Thirty-six voted in favor with zero against and zero abstaining. | |
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| UN R24: Proposal to supersede GRPE/2023/18 |
| Reference Number: GRPE-89-18 |
|
Revised proposal, superseding the original proposal, to clarify the wording regarding the use of the reference fuel required for emission testing, to permit testing with the same reference fuel used for emission testing, and to align with recently adopted amendments to Regulation No. 85. |
| Submitted by: OICA |
| Meeting Sessions: 89th GRPE session (30 May-2 Jun 2023) |
| Document date: 26 May 23 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Screening for applicability to ADS vehicles |
| Reference Number: GRPE-TF-AVRS-02-01 |
| Submitted by: Netherlands |
| Meeting Sessions: 2nd GRPE-TF-AVRS session (4 Apr 2023) |
| Document date: 04 Apr 23 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
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| UN R24: Proposal for Supplement 10 to the 03 series of amendments | |
| Reference Number: WP.29/2023/58 | |
|
Proposal to add assembly plant(s) to the approval information document. |
|
| Meeting Sessions: 190th WP.29 session (19-22 Jun 2023) | |
| Document date: 04 Apr 23 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2023/58) was adopted by the World Forum. Thirty-two Contracting Parties out of the 50 applying UN R24 were present for the vote by AC.1. Thirty-two voted in favor with zero against and zero abstaining. | |
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| UN R24: Proposal for a new Supplement to the 03 series of amendments |
| Reference Number: GRPE/2023/18 |
|
Proposal to clarify the wording regarding the use of the reference fuel required for emission testing, to permit testing with the same reference fuel used for emission testing, and to align with recently adopted amendments to Regulation No. 85. |
| Submitted by: OICA |
| Meeting Sessions: 89th GRPE session (30 May-2 Jun 2023) |
| Document date: 16 Mar 23 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24 and UN R101: Proposal for new supplements |
| Reference Number: GRPE-87-07/Rev.1 |
|
Proposal to add assembly plant(s) to the approval information document. |
| Submitted by: France |
| Meeting Sessions: 87th GRPE session (10-13 Jan 2023) |
| Document date: 11 Jan 23 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and UN Regulation No. 101 | Carbon Dioxide Emissions and Fuel/Energy Consumption |
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| UN R24 : Proposal for Supplement 9 to the 03 series of amendments | |
| Reference Number: WP.29/2022/133/Rev.1 | |
|
Proposal from GRPE to allow for the usage of the reference fuel required for emission testing when the manufacturer applies for UN R85 and/or UN R49 type approval at same time. |
|
| Meeting Sessions: 188th WP.29 session (14-16 Nov 2022) | |
| Document date: 04 Oct 22 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2022/133/Rev.1) was adopted by the World Forum. Thirty-two Contracting Parties out of the 49 applying UN R24 were present for the vote by AC.1. Thirty-two voted in favor with zero against and zero abstaining. | |
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| UN R24: Proposal for Supplement 8 to the 03 series of amendments |
| Reference Number: WP.29/2022/73 |
|
Proposal from GRPE to align UN R24 with to align UN R85 and ISO 1585:2020. |
| Meeting Sessions: 187th WP.29 session (20-24 Jun 2022) |
| Document date: 06 Apr 22 |
| Document status: Adopted by WP.29 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for a Supplement to the 03 series of amendments |
| Reference Number: GRPE/2022/22 |
|
Proposal to allow for the usage of the reference fuel required for emission testing when the manufacturer applies for UN R85 and/or UN R49 type approval at same time. |
| Submitted by: OICA |
| Meeting Sessions: 86th GRPE session (30 May-2 Jun 2022) |
| Document date: 21 Mar 22 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for a Supplement |
| Reference Number: GRPE-85-23 |
|
The use of test fuels is permitted for certification testing of gaseous and particulate pollutants and power/smoke testing in Europe. However, other countries that have adopted and referenced UN R24 may not allow this. This proposal would permit the use of the same test fuel in cases where the testing for emission of gaseous and particulate pollutants is conducted at the same time as the testing under UN R24. |
| Submitted by: OICA |
| Meeting Sessions: 85th GRPE session (11-14 Jan 2022) |
| Document date: 30 Dec 21 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for a new Supplement to the 03 series of amendments |
| Reference Number: GRPE/2022/4 |
|
Proposal to align UN R24 with to align the UN R85 and ISO 1585:2020. |
| Submitted by: OICA |
| Meeting Sessions: 85th GRPE session (11-14 Jan 2022) |
| Document date: 26 Oct 21 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for Supplement 7 to the 03 series of amendments | |
| Reference Number: WP.29/2021/128 | |
|
Proposal from GRPE to exempt vehicles with newer technologies (e.g., modern vehicles) from opacity tests. |
|
| Meeting Sessions: 185th WP.29 session (23-26 Nov 2021) | |
| Document date: 08 Sep 21 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2021/128) was adopted by the World Forum. Thirty-five Contracting Parties out of the 4 applying UN R24 were present for the vote by AC.1. Thirty-four voted in favor with zero against and one abstaining. | |
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| UN R24: Proposal for Supplement 6 to the 03 series of amendments | |
| Reference Number: WP.29/2021/67 | |
|
Proposal to clarify the scope and application of the regulation. |
|
| Meeting Sessions: 184th WP.29 session (22-24 Jun 2021) | |
| Document date: 09 Apr 21 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2021/67) was adopted by the World Forum. Thirty-five Contracting Parties out of the 48 applying UN R24 were present for the vote by AC.1. Thirty-five voted in favor with zero against and zero abstaining. | |
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| UN R24: Proposal for amendment to 03 series of amendments |
| Reference Number: GRPE/2021/15 |
| Amends the Scope to better clarify its applicability. |
| Submitted by: OICA |
| Meeting Sessions: 83rd GRPE session (1-4 Jun 2021) |
| Document date: 19 Mar 21 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal to amend the amendment to 03 series of amendments |
| Reference Number: GRPE-82-25 |
|
Proposes to amend the scope to clarify that UN R 49-06 series engine certification (corresponding to Euro VI) have no smoke and does not include the certification according to UN Regulation 24. |
| Submitted by: OICA |
| Meeting Sessions: 82nd GRPE session (12-15 Jan 2021) |
| Document date: 08 Jan 21 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for amendments to the 03 series of amendments |
| Reference Number: GRPE/2021/8 |
|
Proposal to clarify the scope and application of the regulation. |
| Submitted by: OICA |
| Meeting Sessions: 82nd GRPE session (12-15 Jan 2021) |
| Document date: 03 Nov 20 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal to exclude UN R24 from the scope of UN R49 -06 engine emissions |
| Reference Number: GRPE-81-28 |
| Submitted by: OICA |
| Meeting Sessions: 81st GRPE session (9-12 Jun 2020) |
| Document date: 09 Jun 20 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions |
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| UN R24: Proposal for amendments to Supplement 5 to the 03 series of amendments |
| Reference Number: GRPE-81-18 |
|
Provisions to define a reference value for particle number |
| Submitted by: CITA |
| Meeting Sessions: 81st GRPE session (9-12 Jun 2020) |
| Document date: 09 Jun 20 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal to amend the 03 series of amendments |
| Reference Number: GRPE-80-11 |
|
Proposal to introduce and improve provisions to protect against tampering with emissions control devices. |
| Submitted by: CITA |
| Meeting Sessions: 80th GRPE session (14-17 Jan 2020) |
| Document date: 06 Jan 20 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for Supplement 5 to the 03 series of amendments | |
| Reference Number: WP.29/2019/41 | |
|
Proposal to align the provisions of the 03 series of amendments to UN R24 with UN R85. Other amendments are proposed in order to bring the format of UN R24 up to date. |
|
| Meeting Sessions: 178th WP.29 session (24-28 Jun 2019) | |
| Document date: 12 Apr 19 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2019/41) was adopted by the World Forum. Thirty-five Contracting Parties out of the 47 applying UN R24 were present for the vote by AC.1. Thirty-five voted in favor with zero against and zero abstaining. | |
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| UN R24: Proposal for amendments |
| Reference Number: GRPE-78-07 |
|
Proposal to expand the scope of UN R24 to include Category T vehicles (agricultural and forestry tractors). |
| Submitted by: Russia |
| Meeting Sessions: 78th GRPE session (7-11 Jan 2019) |
| Document date: 08 Jan 19 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for amendments |
| Reference Number: GRPE/2019/6 |
|
Proposal to align the provisions of the 03 series of amendments to UN R24 with UN R85. Other amendments are proposed in order to bring the format of UN R24 up to date. |
| Submitted by: OICA |
| Meeting Sessions: 78th GRPE session (7-11 Jan 2019) |
| Document date: 26 Oct 18 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for Supplement 4 to the 03 series of amendments | |
| Reference Number: WP.29/2018/143 | |
|
Proposal to align UN R24 (Compression Ignition Engines – Emission of Visible Pollutants – Power Measurement) with UN R85 with regard to correction factors. |
|
| Meeting Sessions: 176th WP.29 session (12-16 Nov 2018) | |
| Document date: 17 Aug 18 | |
| Document status: Adopted by WP.29 | |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power | |
| Adoption Vote | |
| This proposal (WP.29/2018/143) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 46 applying UN R24 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining. | |
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| UN R24: Justification for alignment with UN R85 |
| Reference Number: GRPE-77-20 |
|
Explanation of the proposal (GRPE/2018/19) to align UN R24 (Compression Ignition Engines – Emission of Visible Pollutants – Power Measurement) with UN R85 with regard to correction factors. |
| Submitted by: OICA |
| Meeting Sessions: 77th GRPE session (4-8 Jun 2018) |
| Document date: 06 Jun 18 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power and UN Regulation No. 85 | Power Measurement of Internal Combustion Engines and Electric Motors |
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| UN R24: Proposal for amendments |
| Reference Number: GRPE/2018/19 |
|
Proposal to align UN R24 (Compression Ignition Engines – Emission of Visible Pollutants – Power Measurement) with UN R85 with regard to correction factors. |
| Submitted by: OICA |
| Meeting Sessions: 77th GRPE session (4-8 Jun 2018) |
| Document date: 26 Mar 18 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| UN R24: Proposal for amendments |
| Reference Number: GRPE-76-21 |
|
Proposal to align UN R24 (Compression Ignition Engines – Emission of Visible Pollutants – Power Measurement) with UN R85 with regard to correction factors. |
| Submitted by: OICA |
| Meeting Sessions: 76th GRPE session (9-12 Jan 2018) |
| Document date: 10 Jan 18 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power |
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| Heavy-Duty Dual Fuel (Diesel-gas) Regulation brief status report January 2011 |
| Reference Number: GRPE-61-25 |
| Meeting Sessions: 61st GRPE session (10-14 Jan 2011) |
| Document date: 13 Jan 11 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power, UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions, UN Regulation No. 67 | Liquefied Petroleum Gas Equipment, UN Regulation No. 85 | Power Measurement of Internal Combustion Engines and Electric Motors, UN Regulation No. 110 | Compressed and Liquefied Natural Gas System Components, UN Regulation No. 115 | Liquefied Petroleum and Compressed Natural Gas Retrofit Systems, and UN Regulation No. 143 | Heavy-Duty Dual Fuel Retrofit Systems |
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| Heavy-Duty Dual Fuel (Diesel-gas) Regulation Status: January 2011 |
| Reference Number: GFV-12-03 |
| Meeting Sessions: 12th GFV session (11 Jan 2011) |
| Document date: 11 Jan 11 |
| Relevant to: UN Regulation No. 24 | C.I. Engine Emissions and Net Power, UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions, UN Regulation No. 67 | Liquefied Petroleum Gas Equipment, UN Regulation No. 85 | Power Measurement of Internal Combustion Engines and Electric Motors, UN Regulation No. 110 | Compressed and Liquefied Natural Gas System Components, UN Regulation No. 115 | Liquefied Petroleum and Compressed Natural Gas Retrofit Systems, and UN Regulation No. 143 | Heavy-Duty Dual Fuel Retrofit Systems |
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