This Technical Specification gives guidance for dealing with the production and control of sludge in relation to inputs and treatment and gives a strategic evaluation of recovery, recycling and disposal options for sludge according to its properties and the availability of outlets. This Technical Specification is applicable for sludges from: ? storm water handling; ? night soil; ? urban wastewater collecting systems; ? urban wastewater treatment plants; ? treating industrial wastewater similar to urban wastewater (as defined in Directive 91/271/EC [1]); ? water supply treatment plants; but excluding hazardous sludges from industry.