Operators shall ensure that labels are affixed to scheduled substances of categories 1 and 2 of Annex I before they are supplied. The labels must show the names of the substances as given in Annex I. Operators may in addition affix their customary labels.
[F1The Commission shall be empowered to adopt delegated acts in accordance with Article 15a concerning the requirements and conditions for the labelling of mixtures containing scheduled substances.]