Assistant Chief Operations Officer

Assistant Chief Operations Officer
Affiliation:	Federation
Higher Rank:	Chief Operations Officer
Lower Rank:	Assistant Chief Operations Officer
Command:	Department Head
Known Assistant Chief Operations Officers:	Data, USS Enterprise-D;
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{{Rank Infobox |color |name= |image= |affiliation=Federation |higher rank= |lower rank=Operations Officer, [[Boatswain], Quartermaster, Transporter Specialist |command=Assistant Department Head |known= }}

The Chief Operations Officer cannot man the bridge at all times. Extra personnel are needed to relive and maintain ship operations. The Operations Officers are thus assistants to the Chief, fulfilling his/her duties when required, and assuming the Operations consoles if required at any time.

The Assistant Chief Operations Officer is the second-in-command of the Operations Department, and can assume the role of Chief Operations Officer on a temporary or permanent basis if so needed.