Ongoing work has indicated that making the Code of Practice mandatory, in its entirety, would potentially have a number of unintended and undesirable consequences.
Mae gwaith sy'n dal i fynd rhagddo wedi dangos y gallai gwneud y Cod Ymarfer yn orfodol, yn ei gyfanrwydd, gael nifer o ganlyniadau anfwriadol ac annymunol.