The process for establishing, dissolving and changing a federation has been separated between those led by governing bodies (section 4) and those led by local authorities (section 5).
Mae'r prosesau ar gyfer sefydlu, diddymu a newid ffederasiwn wedi'u gwahanu rhwng y rhai a arweinir gan gyrff llywodraethu (adran 4) a'r rhai a arweinir gan awdurdodau lleol (adran 5).