Which regulation outlines the qualifications and criteria for First Sergeants (1SG)?

The correct regulation that outlines the qualifications and criteria for First Sergeants (1SG) is AR 614-200. This regulation provides comprehensive guidance on personnel management, including the detailed requirements for various enlisted ranks, specifically focusing on assignments, classifications, and the responsibilities associated with the rank of First Sergeant.

AR 614-200 emphasizes the qualifications needed for soldiers to effectively fulfill the role of First Sergeant, which includes leadership capabilities, experience requirements, and specific competencies necessary for this key non-commissioned officer position. By having clarity on these aspects, it ensures that individuals tasked with this significant leadership role are appropriately vetted and prepared to handle the responsibilities entrusted to them.

The other regulations listed address different aspects of Army policy or administration. For example, AR 670-1 focuses on uniform and appearance standards, AR 600-20 covers the Army's command policy and equal opportunity, while AR 750-1 deals with Army maintenance management. These do not pertain to the qualifications specifically for the First Sergeants, making AR 614-200 the relevant source for this critical information.