New planning use classes and the ability of local authorities to make local amendments to the planning system, where they have evidence, are now in force.
Mae dosbarthiadau defnydd cynllunio newydd nawr ar waith, yn ogystal â’r gallu i awdurdodau lleol wneud diwygiadau lleol i’r system gynllunio os oes tystiolaeth i gefnogi hynny.