Subject to the provisions of article A. 322-41, operators of establishments existing on 6 July 1999 must comply with the provisions of article A. 322-20, the second paragraph of article A. 322-24, the first paragraph of article A. 322-25, article A. 322-27, the second paragraph of article A. 322-29, the second and third paragraphs of article A. 322-32, articles A. 322-33, A. 322-37 and A. 322-38.