GAR | GRSP-78-18/Rev.2

GRSP-78-18/Rev.2

GTR 20: Request for an Authorization to develop Phase 3

Source(s)

Date

5 Feb 2026

Status

Subject

GTR No. 20 Electric Vehicle Safety

Meeting(s)

GRSP | Session 78 | 1-4 Dec 2025

Agenda item 4. UN Global Technical Regulation No. 20 (Electric vehicle safety)

Draft request prepared by the EU proposing a Phase 3 covering:

Expansion of protection scope of thermal propagation test;
Post-crash REESS safety assessment, stabilization procedures and nonoccupant and surroundings safety;
Maintaining the EV battery safety during the in-use phase;
Safety of swappable batteries;
Micromobility, light-category vehicles, e-trailers safety;
Quantitative criteria on flammability, toxicity and corrosiveness of vented gases and smoke; and
Bottom protection.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRSP | Session 78 | 1-4 Dec 2025

9. The expert from the EC presented informal document GRSP-78-19-Rev.1 and gave an overview of the work of the Informal Working Group (IWG) on Electric Vehicle Safety (IWG-EVS). She introduced the latest draft of the proposal for an amendment to UN GTR No. 20 (informal document GRSP-78-04) and discussed the changes to be expected in the final proposal that would be submitted for adoption as a working document to the June 2026 session of GRSP. She indicated that it was not expected that Phase 2 of IWG-EVS would need to be extended beyond its current expiry date of March 2026 and announced the intention of Contracting Parties to submit to the March 2026 session of AC.3 a request for authorisation to start working on a series of pending issues in a Phase 3 of IWG-EVS (informal document GRSP-78-18-Rev.2).