This informal document proposes amendments to UN R78 to introduce new requirements for “Complex Electronic Control Systems” aimed at addressing new technologies such as automatically commanded braking.

Comments on the proposal for amendments to the UN Regulation on Cyber Security Management.

Proposal to introduce requirements to enable the type approval of Electro-Mechanical Braking (EMB) systems.

Proposal to introduce provisions for electric regenerative braking systems.

Revised version of the FRAV recommendations as updated pursuant to GRVA discussions.

Revised text based on document WP.29-187-08 submitted by the VMAD informal group.

Proposal to correct an error in para. 2.3. Weight reduction solutions for brake discs must yield a higher (not lower) ratio between vehicle kinetic energy and mass of the disc braking surface than the reference disc.

Proposal to introduce new text concerning activation: “Notwithstanding the activation criteria above and following the activation request at any type of road by a deliberate action with the same means as for ACSF of Category B1, the ACSF of Category C may turn automatically to standby mode when entering a type of road as described above.”

Proposal for a provision to address use of a steering robot with mechanical power greater than 1200 W to enable testing of certain direct (low) steering gear ratio systems due to the given 0.7 Hz sine frequency.

Proposal to clarify the interpretation of “engine start/run cycle”.

At the 13th session of GRVA the UK presented an informal document (GRVA-13-19) with the purpose of starting discussion on the content of UN Regulation 13, Annex 18. The proposal was made in recognition of the inconsistent understanding of the current text, identified during the discussions leading to the 03 series of amendments to UN R79 which shared common language. It is intended that using harmonised text between Regulations, as far as is practicable, will deliver more consistent application of the requirements and avoid unnecessary changes in procedures and documentation for different vehicle systems.

Review of the existing national / regional activities and a proposed way forward for DSSAD.

Input concerning the review of existing UN Regulations and Global Technical Regulations with regard to their application to vehicles equipped with Automated Driving Systems.

Updated proposal from the UN R157 special interest group to revise provisions concerning DSSAD and data recording/storage.

Revised text provided by the GRVA secretariat pursuant to discussions during the 14th session.

Document provided by the GRVA secretariat pursuant to discussions held during the 14th session.

Document provided by the GRVA secretariat pursuant to discussions during the 14th session.

Document provided by the GRVA secretariat pursuant to discussions during the 14th session.

Proposal from the GRVA secretariat to update informal group deliverables for 2023-2024 under the Framework Document on Automated Vehicles.

Guidance from GRVA regarding the review of WP.29 regulations for applicability to vehicles equipped with driving automation systems.

Proposal to update the text with the American Society for Testing and Materials (ASTM) F2493-20 standard reference test tyre.

Proposal to increase the potential speed reduction during the collision warning phase and clarify the interpretation of “engine start/run cycle” pursuant to GRVA discussions during the 14th session.

Proposal from the EDR/DSSAD informal group to clarify that the occurrence flag to be stored according to paragraph 8.2.1. (n) are linked to the abortion of the lane change manoeuvre rather than to the procedure and to make related clarifications for consistency.

Proposal to clarify the mitigation provision to address threats of spoofing of messages (e.g. 802.11p V2X during platooning, GNSS messages, etc.) by impersonation.

Proposal to introduce amendments to references to ISO/SAE 21434:2021 and ISO PAS 5112 and clarify the interpretation of the requirement in the first line of Table B1 in Annex 5 in UN R155 regarding the authentication of Global Navigation Satellite System (GNSS) messages.

Proposal to align UN R152 with recent amendments to UN R131.

Proposal to align UN R152 with recent amendments to UN R131.

Proposal to align UN R152 with recent amendments to UN R131.

Proposal from the AEBS-HDV informal group to align provisions with corresponding provisions of UN R152 and to clarify the interpretation of the provisions on system robustness when applied to heavy duty vehicles.

Proposal from the AEBS-HDV informal group to increase the potential speed reduction during the collision warning phase.

Proposal for a new UN Regulation for the type approval of automatic emergency braking systems designed to protect vulnerable road users from collisions with heavy vehicles travelling at low speeds. The purpose is to enable a cross-reference in the new UN Regulation on commercial vehicle direct vision to allow for alternative solutions and performance criteria for vehicles equipped with this “urban emergency braking system” capability.

Proposal to ensure the continuity of the American Society for Testing and Materials (ASTM) Method E1337 for the measurement of the Peak Braking Coefficient (PBC) in UN Regulation No. 140, by introducing a reference to the new ASTM Standard Reference Test Tyre F2493.

Proposal to improve UN R78 alignment with UN R13-H provisions concerning the stop lamp signal.