| Revision 4 | Amendment 1 (2025) |
| Revision 3 | Amendment 1 (2021) |
| Revision 3 | Amendment 2 (2023) |
| Revision 3 | Amendment 3 (2024) |
| Revision 2 (2009) |
| Revision 2 | Amendment 1 (2012) |
| Revision 2 | Amendment 2 (2014) |
| Revision 2 | Amendment 3 (2016) |
| Revision 2 | Amendment 4 (2019) |
| Revision 2 | Amendment 5 (2019) |
| Revision 2 | Amendment 6 (2020) |
| Revision 2 | Amendment 7 (2020) |
| Revision 2 | Amendment 8 (2021) |
| Revision 2 | Amendment 9 (2023) |
| Earlier texts may be available through the UN Official Document System. |