Austrian Eco Label for printed paper products applies to offset and electro-photographic digital printing methods. The environmental requirements contained in these criteria provide the printing company with guidance on how to contribute to sustainable development.A printing company with the Austrian Eco Label has shown that it fulfils a number of environmental requirements which make it as least polluting as possible. This applies to the entire supply chain. The requirements encompass firstly the printing process and the paper and chemicals used by the printing company.In case of digital printing, toners must be free of substances which could cause reproductive harm. They must be able to be reused or supplied to a material recycling scheme. The deinkability of toners has to be proven, which might be the most challenging requirement for digital printers.