The regulations do this through measures designed to prevent or reduce emissions of agricultural pollutants, including nitrates, phosphorus, ammonia and nitrous oxide, to the environment.
Mae'r Rheoliadau'n gwneud hyn drwy fesurau a gynlluniwyd i atal neu leihau allyriadau llygryddion amaethyddol, gan gynnwys nitradau, ffosfforws, amonia ac ocsid nitrus, i'r amgylchedd.