English: European Pollutant Release and Transfer Register
Welsh: Cofrestr Ewropeaidd ynghylch Gollwng a Throsglwyddo Llygryddion 
Subject: Cyfraith
English definition: E-PRTR. The European PRTR is the European Pollutant Release and Transfer Register - the European-wide register of industrial and non-industrial releases into air, water, land and off-site transfers of waste water and waste including information from point and diffuse sources.