Which block on a performance evaluation should indicate if the rater is unavailable to sign due to deployment?

The correct answer is the Signature Block. This is where a rater indicates their availability to sign the evaluation. If the rater is deployed and unable to sign, this is noted in the Signature Block to provide clarification regarding their inability to review and endorse the performance evaluation in the usual manner. This protocol ensures transparency and maintains the integrity of the evaluation process, as it informs subsequent reviewers and personnel about any potential discrepancies in the evaluation due to the rater's absence.

While other blocks on the performance evaluation serve specific functions, they do not specifically address the availability of the rater for signing. For example, Block 40 is used for recommendations for advancement and special assignments, Block 21 identifies the member's capacity and strengths, and Block 3 typically outlines the date and the reporting period. None of these directly indicate a rater's deployment status or signing capability in the same explicit manner as the Signature Block.