Written Statement - Written statement on the designation of the first tranche of urban quiet areas under the Environmental Noise Directive (23 May 2012)
Datganiad Ysgrifenedig - Datganiad ysgrifenedig ar ddynodi’r gyfran gyntaf o fannau tawel trefol o dan y Gyfarwyddeb Sŵn Amgylcheddol (23 Mai 2012)