What is the TIR required for advancement from E-8 to E-9?

To advance from E-8 to E-9, the time-in-rate (TIR) requirement is 36 months. This TIR policy is in place to ensure that candidates have sufficient experience and demonstrated leadership abilities before attaining the rank of Chief Petty Officer. Having a 36-month period allows for an assessment of the candidate's performance, training, and ability to fulfill the responsibilities associated with the higher rank.

The advancement from E-8 to E-9 is significant, as it places additional expectations on a Service member regarding leadership, managerial skills, and subject matter expertise. The 36-month requirement is designed to provide a robust foundation of experience that supports the demands of the higher rank effectively.