The DA Form 2166-9-1 is an essential tool used in the U.S. Army to evaluate the performance of Non-Commissioned Officers (NCOs) at the rank of Sergeant. This form serves as the NCO Evaluation Report, capturing vital information about the rated NCO, including their name, Social Security Number, rank, and unit details. It is structured to provide a comprehensive overview of the NCO's duties, performance, and potential for future assignments. The form is divided into several parts, starting with administrative data, followed by sections for authentication by the rater and senior rater. Each section requires specific details, such as the rater's and senior rater's names, ranks, and signatures, ensuring accountability in the evaluation process. The performance evaluation section assesses various attributes, including character, presence, intellect, leadership, development, and achievement, with clear criteria for rating each area. Additionally, the form emphasizes the importance of counseling dates and provides space for comments, allowing for a thorough review of the NCO's performance and growth. This structured approach not only aids in individual assessments but also contributes to the overall effectiveness of Army leadership and personnel management.