Senior Chief Petty Officer

Senior Chief Petty Officer

Senior Chief Petty Officer is the eighth enlisted rank in Starfleet, just above Chief Petty Officer and below Master Chief Petty Officer, and is a noncommissioned officer. They are addressed as "Senior Chief" in most circumstances, or sometimes, less formally, as "Senior". As do Chief Petty Officers, Senior Chief Petty Officers takes on more administrative duties in their new paygrade.

Advancement to Senior Chief Petty Officer is similar to that of Chief Petty Officer. It carries requirements of time in service, superior evaluation scores, and peer review. In Starfleet it is the first promotion that is based entirely on proven leadership performance; test scores do not play a part. A Chief Petty Officer can only advance if a board of Master Chiefs approves, convened every year around March. Senior Chief Petty Officers make up just 2.5% of the total enlisted force of Starfleet.