| Revision 1 (2023) |
| Revision 1 | Amendment 1 (2022) |
| Revision 1 | Amendment 2 (2024) |
| Revision 1 | Amendment 3 (2024) |
| UN R160 (2021) |
| Amendment 1 (2023) |
| Amendment 2 (2022) |
| Amendment 3 (2024) |
| Earlier texts may be available through the UN Official Document System. |