4-216. Before employment in DSCA, all Soldiers require training on the appropriate RUF. Training focuses upon the particular RUF in the operation plan issued by the gaining joint force commander, but in the absence of the plan commanders should train according to the SRUF. Commanders should include a staff judge advocate to assist with leader training. SRUF cards should be issued to each person during training and personnel should not deploy until they are trained in SRUF. Supported combatant commanders submit a request for mission specific RUF to the Chairman of the Joint Chiefs of Staff, for approval by the Secretary of Defense. Unit commanders may further restrict mission specific RUF approved by the Secretary of Defense, but they may not make them more permissive. Unit commanders notify their chain of command up through the Secretary of Defense of any additional restrictions (at all levels) they place on approved RUF. In time critical situations, notification to the Secretary of Defense occurs concurrently with notification to the Chairman of the Joint Chiefs of Staff.