| Revision 7 (2020) |
| Revision 6 (2014) |
| Revision 6-Amendment 1 (2015) |
| Revision 6 | Amendment 2 (2017) |
| Revision 6 | Amendment 3 (2018) |
| Revision 6 | Amendment 4 (2018) |
| Revision 6 | Amendment 5 (2019) |
| Revision 5 (2011) |
| Revision 5-Corrigendum 1 (2013) |
| Revision 5-Amendment 1 (2012) |
| Revision 5-Amendment 2 (2013) |
| Revision 5-Amendment 3 (2013) |
| Earlier texts may be available through the UN Official Document System. |