Facilities serving non-domestic properties will need to comply between 2 and 4 years later depending on the risk they pose to the environment.
Bydd gofyn i gyfleusterau sy’n gwasanaethu eiddo annomestig gydymffurfio rhwng dwy a phedair blynedd yn ddiweddarach gan ddibynnu ar faint y perygl i’r amgylchedd.