Without prejudice to the provisions of Chapter III of Title III of Book V of the Environment Code, the provisions of Articles R. 1243-34 to R. 1243-38 are applicable to the conditions for authorisation of gene therapy preparations and xenogenic cell therapy preparations, with the exception, for gene therapy preparations, of obtaining the opinion of the Agence de la biomédecine provided for in Article R. 1243-34. For the application of these articles, the authorisation for these preparations is that mentioned in article R. 5121-207.