Ecotoxicity tests can be applied to wastes to identify their potential hazardous properties with respect to the environment or to assess the risk related to a site-specific exposure scenario. This document provides guidance for the selection and use of ecotoxicity tests for both applications. This document focuses on the following selected field of applications:a) Basic ecotoxicological characterization;b) Site-specific exposure scenario;c) Landfill management:1) monitoring of leachates;2) mineral waste going to non-controlled landfill sites.d) Re-use of waste:1) use of sludge in agriculture;2) use of mineral waste in road construction.The user should be aw