Mae’r cynllun trwyddedu’n rhan o becyn o fesurau y cytunodd Llywodraeth Cymru a Phlaid Cymru arno ym mis Hydref i hwyluso’r ymrwymiad yn y Cytundeb Cydweithredu i leihau llygredd amaethyddol.
This proposed licensing scheme is part of the package of measures the Welsh Government and Plaid Cymru agreed in October to progress the implementation of the Co-operation Agreement commitment on agricultural pollution.