Before taking any decision imposing a fine and/or periodic penalty payment under Article 38 or 39, the Board shall give the natural or legal persons subject to the proceedings the opportunity to be heard on its findings. The Board shall base its decisions only on findings on which the natural or legal persons subject to the proceedings have had the opportunity to comment.

The rights of defence of the natural or legal persons subject to the proceedings shall be fully complied with during the proceedings. They shall be entitled to have access to the Board's file, subject to the legitimate interest of other persons in the protection of their business secrets. The right of access to the file shall not extend to confidential information or internal preparatory documents of the Board.