Revision 2 (2023) |
Revision 2 | Amendment 1 (2022) |
Revision 2 | Amendment 2 (2022) |
Revision 2 | Amendment 3 (2023) |
Revision 1 (2017) |
Revision 1 | Amendment 1 (2019) |
Revision 1 | Amendment 2 (2019) |
Revision 1 | Amendment 3 (2021) |
UN R137 (2016) |
Amendment 1 (2017) |
Amendment 2 (2019) |
Earlier texts may be available through the UN Official Document System. |