| UN R25: Revision 1 (1990) |
| UN R25: Revision 1-Corrigendum 1 (1992) |
| UN R25: Revision 1-Corrigendum 2 (2009) |
| UN R25: Revision 1-Amendment 1 (1994) |
| UN R25: Revision 1-Amendment 2 (1997) |
| Revision 1 | Amendment 3 (2015) |
| Earlier texts may be available through the UN Official Document System. |