clarifying how certain powers to carry out works, make compulsory purchases and enter premises are divided between NRW and the Environment Agency;
egluro sut mae gwahanol bwerau i wneud gwaith, cyflawni pryniant gorfodol, neu fynd mewn i safle yn cael eu rhannu rhwng Cyfoeth Naturiol Cymru ac Asiantaeth yr Amgylchedd;