UN R109: Revision 1 (2010)
UN R109: Revision 1-Corrigendum 1 (2013)
UN R109: Revision 1-Amendment 1 (2016)
Revision 1 | Amendment 2 (2017)
Revision 1 | Amendment 3 (2019)
Revision 1 | Amendment 4 (2021)
Revision 1 | Amendment 5 (2023)
Revision 1 | Amendment 6 (2024)
Revision 1 | Amendment 7 (2025)
Earlier texts may be available through the UN Official Document System.