Artikel 11

1. No provision in this Convention shall preclude the application of the prohibitions or restrictions relating to importation, exportation, or transit, imposed for reasons of public order, and in particular public safety, morality, and health, or for the protection of the environment, of cultural heritage or industrial, commercial and intellectual property.
2. Nevertheless, whenever possible without prejudice to the effectiveness of the controls, the Contracting Parties shall endeavour to apply to the controls in connection with the application of the measures mentioned in paragraph 1 above the provisions of this Convention, inter alia, those which are the subject of articles 6 to 9.