Entry into force: 12 series of amendments | Supplement 7
19 Jan 2026
UN R13 | 12 series of amendments | Supplement 7
Based on WP.29/2025/57 as adopted during the 196th WP.29 session (23-27
Jun 2025).
Proposal to mitigate the risks of decreasing trailer brake performance caused by brake pads and linings “falling asleep”.
Entry into force as of 11 Jan 2026
Entry into force: 15 series of amendments
6 Oct 2025
UN R13 | 15 series of amendments
Based on WP.29/2025/6 as adopted during the 195th WP.29 session (3-7
Mar 2025).
Proposal to ensure that endurance braking is assessed in the context of the Type II-A test based on the maximum mass of the vehicle or vehicle combination.
Entry into force as of 26 Sep 2025
Entry into force: 11 series of amendments | Supplement 6
6 Oct 2025
UN R13 | 11 series of amendments | Supplement 6
Based on WP.29/2011/3 as adopted during the 153rd WP.29 session (8-11
Mar 2011).
Entry into force as of 28 Oct 2011
Entry into force: 13 series of amendments | Supplement 4
6 Oct 2025
UN R13 | 13 series of amendments | Supplement 4
Based on WP.29/2025/10 as adopted during the 195th WP.29 session (3-7
Mar 2025).
Proposal to resolve an inconsistency in wording across the series with regard to the parking brake performance requirement.
Entry into force as of 26 Sep 2025
Entry into force: 12 series of amendments | Supplement 6
6 Oct 2025
UN R13 | 12 series of amendments | Supplement 6
Based on WP.29/2025/9 as adopted during the 195th WP.29 session (3-7
Mar 2025).
Proposal to resolve an inconsistency in wording across the series with regard to the parking brake performance requirement.
Entry into force as of 26 Sep 2025
Entry into force: 14 series of amendments | Supplement 1
6 Oct 2025
UN R13 | 14 series of amendments | Supplement 1
Based on WP.29/2025/11 as adopted during the 195th WP.29 session (3-7
Mar 2025).
Proposal to resolve an inconsistency in wording across the series with regard to the parking brake performance requirement.
Entry into force as of 26 Sep 2025
Entry into force: 13 series of amendments
15 Jan 2024
UN R13 | 13 series of amendments
Based on WP.29/2023/66 as adopted during the 190th WP.29 session (19-22
Jun 2023).
Proposal to require a vehicle stability function on commercial vehicles over 25 tons with four axles in accordance with their specific use.