A less stringent objective should be considered if it becomes clear that it will be infeasible or disproportionately expensive to achieve good status by 2027.
Dylid ystyried amcan llai llym os daw’n amlwg y bydd sicrhau statws ‘da’ erbyn 2027 naill ai’n annichonadwy neu’n anghymesur o ddrud.