If you decide that vendors and stallholders are responsible for their own waste, your agreement with them should include a requirement that they comply with the new law.
Os penderfynwch mai gwerthwyr a deiliaid stondinau fydd yn gyfrifol am eu gwastraff eu hunain, dylai eich cytundeb gyda nhw gynnwys gofyniad iddynt gydymffurfio â’r gyfraith newydd.