Every development in Wales must provide a Net Benefit for Biodiversity (NBB) and must minimise harm to wildlife and the natural environment.
Rhaid i bob datblygiad yng Nghymru ddarparu Budd Net i Fioamrywiaeth (NBB) a rhaid iddo sicrhau bod cyn lleied o niwed â phosibl i fywyd gwyllt a'r amgylchedd naturiol.