What indicates the duration that calls for an extended annual NCOER?

The duration that necessitates an extended annual Non-Commissioned Officer Evaluation Report (NCOER) is indicated by attendance at a temporary duty assignment for over 30 days. When an NCO is assigned to temporary duty for an extended period, it typically affects their evaluation cycle and performance assessments.

This extended duty can provide the NCO with opportunities for additional responsibilities and challenges that should be reflected in their evaluation. Because of the longer duration away from their regular unit, it is important to capture this performance accurately, hence the requirement for an extended NCOER to assess their contributions and effectiveness during this time.

While the other options might have implications for an NCO's service record, they do not specifically trigger the need for an extended annual NCOER. A break in service typically does not extend the evaluation period; a transfer might require a new evaluation but not necessarily an extension of the current one; and while being on leave for over 30 days may be significant, it does not directly relate to the criteria for extending the evaluation period like a temporary duty assignment does.