The preparation of the IIA has been an iterative process as the project has progressed and a better understanding of how the Bill will be structured has developed.
Mae paratoi'r asesiad effaith integredig wedi bod yn broses ailadroddol wrth i'r prosiect fynd rhagddo, ac wrth i well ddealltwriaeth ynghylch sut y caiff y Bil ei strwythuro ddatblygu.