Above a certain threshold the Ministry of Defence (including Defence Equipment and Support) would need to seek Cabinet Office approval in order to use this justification.
Uwchlaw trothwy penodol, byddai angen i'r Weinyddiaeth Amddiffyn (gan gynnwys Cyfarpar Amddiffyn a Chymorth) geisio cymeradwyaeth Swyddfa'r Cabinet er mwyn defnyddio'r sail hon.