Proposal from Italy with support from IMMA to adapt GTR No. 3 to technical and standardization progress, introducing provisions for the activation of the stop lamp under regenerative and/or automatically commanded braking, and updating the references to ASTM standards to enable the use of the new ASTM standard reference test tyre F2493 for the measurement of the Peak Braking Coefficient (PBC).

85. The expert from Italy informed GRVA that he had submitted to the WP.29 secretariat in December 2021 a request for authorization to amend UN GTR No. 3, for consideration at the March 2022 session of AC.3. He detailed the technical matters to be addressed to harmonize UN Regulation No. 78 and UN GTR No. 3. He clarified that GRVA would be invited to consider introducing provisions for the activation of the stop lamp under regenerative braking and updating the references to ASTM standards to enable the use of the new ASTM standard reference test tyre F2493 for the measurement of the Peak Braking Coefficient (PBC). GRVA encouraged the expert from Italy to further discuss this item at the next AC.3 session.

86. GRVA agreed to keep GRVA-12-15 on the agenda as a reference document until its next GRVA session in May 2022.

Proposal to adapt GTR No. 3 to technical and standardization progress, introducing provisions for the activation of the stop lamp under regenerative braking and to enable the use of the new American Society for Testing and Materials (ASTM) Standard Reference Test Tyre F2493 for the measurement of the Peak Braking Coefficient (PBC). This amendment aims to keep the global harmonization of motorcycle braking requirements in UN GTR No. 3 and the most recent version of UN Regulation No. 78.

146. The representative of Italy requested the authorization to develop amendment 4 to the UN GTR No. 3 (ECE/TRANS/WP.29/2022/47). He explained that, after having submitted the proposal to AC.3 in December 2021, Italy informed GRVA in January 2022 of their intention to propose an amendment to the UN GTR to harmonize it with UN Regulation No. 78. The proposal would include requirements for stop lamp activation under regenerative braking and the updating of the references to American Society for Testing and Materials (ASTM) standards for the determination of the Peak Braking Coefficient (PBC). He clarified that, following informal consultations with GRVA and contracting parties, the work plan contained in the document may be updated to take into account relevant GRVA developments and amendments related to stop lamp activation. AC.3 requested the secretariat to keep the document on its agenda for the June 2022 session.

Proposal introducing provisions for the activation of the stop lamp under regenerative braking and updating the references to ASTM standards to enable the use of the new ASTM standard reference test tyre F2493 for the measurement of the Peak Braking Coefficient (PBC).

95. The expert from Italy informed GRVA (GRVA-11-29) of their intention to submit a proposal for amendments to UN GTR No. 3 at the next session of Executive Committee of the 1998 Agreement (AC.3) that would propose to adapt UN GTR No. 3 to technical and standardization progress, introducing provisions for the activation of the stop lamp under regenerative braking and updating the references to ASTM standards to enable the use of the new ASTM standard reference test tyre F2493 for the measurement of the Peak Braking Coefficient (PBC). He asked for comments on that proposal. The expert from Canada explained that, in their view some further work would be needed, for example, on the definition proposed in para. 2.25. and other small items.

Establishment of the Executive Committee (AC.3) of the 1998 Agreement Fifty-sixth session (item 12) – Proposals for amendments to UN GTRs (items 14.2.1. to 14.2.4.)

53. Submitted for consideration and vote Amendments 4 to UN GTR No. 3 – Motorcycle braking (ECE/TRANS/WP.29/2020/47, ECE/TRANS/WP.29/2020/48, and ECE/TRANS/WP.29/AC.3/47) were adopted on 24 June 2020 by consensus vote of the following contracting parties present and voting: Australia, China, European Union (representing Cyprus, Finland, France, Germany, Hungary, Italy, Lithuania, Luxembourg, Netherlands, Romania, Slovakia, Slovenia, Spain, Sweden and United Kingdom), India, Japan, Nigeria, Norway, Republic of Korea, Russian Federation, San Marino, South Africa and Turkey, with the following correction: for Amendment 4, read Amendment 3. Canada, Tunisia and United States of America abstained from voting.

Proposal to align GTR No. 3 with technical progress, addressing among others: electromagnetic compatibility/immunity of ABS-systems, ABS performance requirements for category 3-5 vehicles (three-wheelers), uniform requirements for equipment such Emergency Stop Signal and the means to disable the ABS, if equipped. This amendment aims to harmonize GTR with recent amendments made to UN Regulation No. 78 while addressing its use under self-certification compliance systems.

53. Submitted for consideration and vote Amendments 4 to UN GTR No. 3 – Motorcycle braking (ECE/TRANS/WP.29/2020/47, ECE/TRANS/WP.29/2020/48, and ECE/TRANS/WP.29/AC.3/47) were adopted on 24 June 2020 by consensus vote of the following contracting parties present and voting: Australia, China, European Union (representing Cyprus, Finland, France, Germany, Hungary, Italy, Lithuania, Luxembourg, Netherlands, Romania, Slovakia, Slovenia, Spain, Sweden and United Kingdom), India, Japan, Nigeria, Norway, Republic of Korea, Russian Federation, San Marino, South Africa and Turkey, with the following correction: for Amendment 4, read Amendment 3. Canada, Tunisia and United States of America abstained from voting.

62. The expert from Italy introduced ECE/TRANS/WP.29/GRVA/2019/23, proposing amendments to UN GTR No. 3 as per the mandate adopted by A.C.3 (ECE/TRANS/WP29/AC.3/47). He also introduced GRVA-04-23 including amendments addressing comments received on the proposal. GRVA adopted the proposal as amended with the below correction and requested the secretariat to submit it to the Executive Committee AC.3 for consideration at vote at its March 2020 session.

In ECE/TRANS/WP.29/GRVA/2019/23, para 10, for 5.1.17, read 3.1.17.

63. The expert from Italy also introduced GRVA-04-24, containing the technical report associated to the proposal. GRVA adopted it and requested the secretariat to submit it to the Executive Committee AC.3 for consideration at vote at its March 2020 session.

64. The expert from IMMA stated his satisfaction concerning the adoption of the amendment proposal to UN GTR No. 3. He mentioned that the outcome of this work was not fully harmonized, especially concerning Electromagnetic Compatibility and defeat device requirements.

Proposal for editorial corrections and clarifications concerning activation of a riding mode with ABS disabled. The changes are also being concurrently proposed for UN R78.

62. The expert from Italy introduced ECE/TRANS/WP.29/GRVA/2019/23, proposing amendments to UN GTR No. 3 as per the mandate adopted by A.C.3 (ECE/TRANS/WP29/AC.3/47). He also introduced GRVA-04-23 including amendments addressing comments received on the proposal. GRVA adopted the proposal as amended with the below correction and requested the secretariat to submit it to the Executive Committee AC.3 for consideration at vote at its March 2020 session.

In ECE/TRANS/WP.29/GRVA/2019/23, para 10, for 5.1.17, read 3.1.17.

63. The expert from Italy also introduced GRVA-04-24, containing the technical report associated to the proposal. GRVA adopted it and requested the secretariat to submit it to the Executive Committee AC.3 for consideration at vote at its March 2020 session.

64. The expert from IMMA stated his satisfaction concerning the adoption of the amendment proposal to UN GTR No. 3. He mentioned that the outcome of this work was not fully harmonized, especially concerning Electromagnetic Compatibility and defeat device requirements.

Side-by-side comparison of GTR 3 and UN R78 provisions.

65. The expert from IMMA introduced GRVA-04-05 and GRVA-04-06, analysing discrepancies between UN GTR No. 3 and UN Regulation No. 78. GRVA invited the expert from IMMA to submit an amendment proposal to UN Regulation No. 78 for review at the next session.

Proposal to ensure consistency between GTR 3 and UN R78 in light of the proposed amendments to GTR 3 (GRVA/2019/23). Paragraph 5.1.17 aims to clarify with an explicit article that the rider is duly informed when activating a riding mode that disables the ABS on the rear axle.

65. The expert from IMMA introduced GRVA-04-05 and GRVA-04-06, analysing discrepancies between UN GTR No. 3 and UN Regulation No. 78. GRVA invited the expert from IMMA to submit an amendment proposal to UN Regulation No. 78 for review at the next session.

Proposal to align GTR No. 3 with technical progress, addressing among others: electromagnetic compatibility/immunity of ABS-systems, ABS performance requirements for category 3-5 vehicles (three-wheelers), uniform requirements for equipment such Emergency Stop Signal and the means to disable the ABS, if equipped. This amendment aims to harmonize GTR with recent amendments made to UN Regulation No. 78 while addressing its use under self-certification compliance systems.

62. The expert from Italy introduced ECE/TRANS/WP.29/GRVA/2019/23, proposing amendments to UN GTR No. 3 as per the mandate adopted by A.C.3 (ECE/TRANS/WP29/AC.3/47). He also introduced GRVA-04-23 including amendments addressing comments received on the proposal. GRVA adopted the proposal as amended with the below correction and requested the secretariat to submit it to the Executive Committee AC.3 for consideration at vote at its March 2020 session.

In ECE/TRANS/WP.29/GRVA/2019/23, para 10, for 5.1.17, read 3.1.17.

63. The expert from Italy also introduced GRVA-04-24, containing the technical report associated to the proposal. GRVA adopted it and requested the secretariat to submit it to the Executive Committee AC.3 for consideration at vote at its March 2020 session.

64. The expert from IMMA stated his satisfaction concerning the adoption of the amendment proposal to UN GTR No. 3. He mentioned that the outcome of this work was not fully harmonized, especially concerning Electromagnetic Compatibility and defeat device requirements.

Refinements to the proposal to align the GTR text with updates to UN R78 introduced in response to technological progress in motorcycle braking.

54. The expert from Italy introduced GRVA-02-07 proposing amendments to the original proposal (ECE/TRANS/WP.29/GRVA/2018/9) for amendments to UN GTR No. 3 for harmonization of the GTR and UN Regulation No. 78. The proposal received some comments. The expert from the Netherlands asked why the proposal contained technical requirements that differed from those in UN Regulation No. 78. The expert from Canada highlighted some formulations that could be better defined to facilitate the implementation of the UN GTR into Self Certification regulations.