| Revision 3 | Amendment 1 (2024) |
| Revision 2 | Amendment 1 (2022) |
| Revision 2 | Amendment 2 (2024) |
| Revision 1 (2021) |
| Revision 1 | Amendment 1 (2021) |
| Revision 1 | Amendment 2 (2023) |
| UN R154 (2021) |
| Amendment 2 (2021) |
| Earlier texts may be available through the UN Official Document System. |