Mae'r ail Orchymyn cychwyn hefyd yn datgymhwyso Mesur 2009 ar gyfer prif gynghorau ac awdurdodau Parciau Cenedlaethol, ac mae'n cynnwys darpariaethau arbed i sicrhau bod arfer swyddogaethau penodol, a phethau eraill a wneir o dan Fesur 2009, yn parhau i gael effaith ar ôl iddo gael ei ddatgymhwyso.
The second commencement Order also disapplies the 2009 Measure to principal councils and National Park authorities, and includes saving provisions to ensure that the exercise of certain functions, and other things done, under the 2009 Measure continue to have effect following its disapplication.