Division 5.2

As an alternative to the requirements set out in point 5.1, the paper of the certificate of conformity may be not protected by a watermark in the form of the registered mark of the manufacturer or brand name. In this case, the coloured graphics shall be supplemented with at least one additional security printing feature (e.g. ultraviolet fluorescent ink, inks with viewing angle-dependent colour, inks with temperature-dependent colour, micro printing, guilloche printing, iridescent printing, laser engraving, custom holograms, variable laser images, optical variable images, physically embossed or engraved manufacturer's logo, etc.)