Entry into force: 07 series of amendments | Supplement 3
12 Jun 2026
UN R49 | 07 series of amendments | Supplement 3
Based on WP.29/2025/94 as adopted during the 197th WP.29 session (10-14
Nov 2025).
Proposal to introduce new provisions to accommodate type-approval of hydrogen Type 1A dual fuel engines and vehicles, modifications to include Fourier Transform Infrared (FTIR) and Quantum Cascade Laser (QCL) instruments, new provisions to accommodate monitoring on-board fuel and/or energy consumption during PEMS testing, and to amend for consistency between UN R49 and UN R83 in light of amendments to the 06 and 07 series of UN R83.
Entry into force as of 4 Jun 2026
Entry into force: 06 series of amendments | Supplement 11
12 Jun 2026
UN R49 | 06 series of amendments | Supplement 11
Based on WP.29/2025/93 as adopted during the 197th WP.29 session (10-14
Nov 2025).
Proposal to maintain consistency between UN R49 and UN R83 in light of amendments to the 06 and 07 series of UN R83.
Entry into force as of 4 Jun 2026
Entry into force: 07 series of amendments | Supplement 3 | Corrigendum 1
14 Apr 2026
UN R49 | 07 series of amendments | Supplement 3 | Corrigendum 1
Based on WP.29/2025/162 as adopted during the 197th WP.29 session (10-14
Nov 2025).
Proposal to correct document WP.29/2025/94.
Entry into force as of 14 Apr 2026
Entry into force: 06 series of amendments | Supplement 10
6 Oct 2025
UN R49 | 06 series of amendments | Supplement 10
Based on WP.29/2025/26 as adopted during the 195th WP.29 session (3-7
Mar 2025).
Proposal to remove additions to non-existing part of the 06 series of amendments (delete the PEMS PM number).