S-phrases were defined in Annex IV:Safety advice concerning dangerous substances and preparations of the European Union Directive 67/548/EEC - Dangerous Substances Directive.
The list was amended and republished in Directive 2001/59/EC.
[2] The list was subsequently updated and republished in Directive 2006/102/EC.
[3] The entirety of Directive 67/548/EEC, including these S-phrases, were superseded completely on 1 June 2015 by Regulation (EC) No 1272/2008 - Classification, Labelling and Packaging Regulations.
This harmonization would be carried out by the United Nations's Globally Harmonized System of Classification and Labelling of Chemicals, that replaced Directive 67/548/EEC under CLP Regulation.