9.1 It would be unsatisfactory if consent had to be obtained for works that were trivial, works that were urgently necessary, or works that had already been authorised in some other way.
9.1 Byddai'n anfoddhaol pe bai'n rhaid cael cydsyniad ar gyfer gwaith a oedd yn ddibwys, gwaith yr oedd angen ei wneud ar frys neu waith a oedd eisoes wedi'i awdurdodi mewn rhyw ffordd arall.