For tenancies which existed before 1 December 2022 landlords have 12 months to comply with these requirements (i.e. by 1 December 2023).
Ar gyfer tenantiaethau a oedd yn bodoli cyn 1 Rhagfyr 2022, mae gan landlordiaid 12 mis i gydymffurfio â'r gofynion hyn (h.y.