Ar ben hynny, gallai argymhelliad gan Weinidogion Cymru y dylid cydsynio i’r Bil hwn godi cwestiynau am eu hymlyniad wrth God y Gweinidogion, a'r "ddyletswydd gyffredinol sydd ar y gweinidogion i gydymffurfio â'r gyfraith, gan gynnwys cyfraith ryngwladol a rhwymedigaethau mewn cytuniadau".Byddai hyn yn arbennig o berthnasol o ran arfer unrhyw bwerau i wneud rheoliadau (os cânt eu rhoi iddynt) o dan y Bil yn unol â rhwymedigaethau rhyngwladol.
Moreover, a recommendation of consent to this Bill by the Welsh Ministers could call into question their adherence to the Ministerial Code, and “the overarching duty on ministers to comply with the law, including international law and treaty obligations”.This would apply particularly with regard to the exercise of any regulation making powers (if conferred upon them) under the Bill in compliance with international obligations.