The provisions of Articles R. 2213-25 and R. 2213-25-1 do not impede the free movement of coffins legally manufactured or marketed in another Member State of the European Union, in another State party to the Agreement establishing the European Economic Area, or in Turkey, which meet a level of strength, watertightness, biodegradability and combustibility equivalent to that defined by the decree provided for in I of Article R. 2213-25.