This CEN Technical report describes good practices for sludge drying and it is one of a series on sludge management options. It gives guidance on - drying processes; - characteristics of dried sludge products; - recycling or disposal of dried sludge products. from urban wastewater treatment plants. Sludges of other origin, like sludge from water supply or industrial treatment plants are not in the exact scope of this CEN Technical Report, however the handling of most of these sludges will comply to a large extent with the leads given in this CEN Technical Report.