Planning Policy Wales, Edition 12, February 2024 (especially paras 6.4.15 to 6.4.17, the Step-Wise Approach, and paras 6.4.33 to 6.4.44, Trees, Woodlands and Hedgerows)
Polisi Cynllunio Cymru, Rhifyn 12, Chwefror 2024 (yn enwedig paragraffau 6.4.15 i 6.4.17, Y Dull Fesul Cam, a pharagraffau 6.4.33 i 6.4.44, Coed, Coetiroedd a Gwrychoedd)