If it is agreed that a school or schools should leave a federation the de-federation date must be at least 125 calendar days from the date the decision is made.
Os cytunir y dylai ysgol neu ysgolion adael ffederasiwn, rhaid i'r dyddiad dadffedereiddio fod ymhen cyfnod o 125 diwrnod calendr, o leiaf, ar ôl y dyddiad y gwneir y penderfyniad.