Revision 3 (2014)
Revision 3 | Corrigendum 1 (2015)
Revision 3 | Amendment 1 (2015)
Revision 3 | Amendment 2 (2016)
Revision 3 | Amendment 3 (2017)
Revision 3 | Amendment 4 (2017)
Revision 3 | Amendment 5 (2019)
Revision 2-Amendment 3 (2012)
Revision 2-Amendment 4 (2013)
Revision 2-Amendment 2 (2011)
Revision 2-Amendment 1 (2010)
Revision 2 (2009)
Earlier texts may be available through the UN Official Document System.