The Commission shall publish the list of competent authorities and any changes thereto in the Official Journal of the European CommunitiesOpenSubtitles2018.v3 OpenSubtitles2018.v3
The sludge growth/stabilization period is the period during which the concentration of the activated sludge suspended solids and the performance of the units progress to a steady state under the operating conditions usedOpenSubtitles2018.v3 OpenSubtitles2018.v3