When a Navy vessel is being built, the shipyard doing the construction must apply to the Parts Control Center for CID numbers for all valves before the Navy will accept delivery of the vessel.

• 在建造美国海军船舶时，造船厂必须在美国海军验收船舶之前，向美国海军部件控制中心申请所有所需阀门的CID编号。