Revision 7 (2023)
Revision 7 | Amendment 1 (2025)
Revision 7 | Amendment 2 (2025)
Revision 6 (2020)
Revision 6 | Amendment 1 (2020)
Revision 6 | Amendment 2 (2021)
UN R17: Revision 5 (2014)
Revision 5 | Corrigendum 1 (2018)
UN R17: Revision 5-Amendment 1 (2016)
Revision 5 | Amendment 2 (2018)
Revision 5 | Amendment 3 (2019)
UN R17: Revision 4 (2002)
UN R17: Revision 4-Corrigendum 1 (2004)
UN R17: Revision 4-Corrigendum 2 (2004)
UN R17: Revision 4-Amendment 1 (2007)
UN R17: Revision 4-Amendment 2 (2009)
UN R17: Revision 4-Amendment 3 (2012)
Earlier texts may be available through the UN Official Document System.