Which Army Regulation (AR) covers the Army Continuing Education System (ACES)?

The correct choice, which is AR 621-5, specifically addresses the Army Continuing Education System (ACES). This regulation outlines the policies and procedures necessary for managing and delivering educational programs to soldiers and their families. It encompasses areas such as academic education, professional development, and credentialing, ensuring that soldiers have access to the training necessary for personal and professional growth.

AR 621-5 serves as a comprehensive framework that supports the Army's overarching goal of enhancing educational opportunities, thereby directly impacting soldier readiness and career advancement. By establishing the guidelines for education programs, the regulation plays a crucial role in promoting lifelong learning among soldiers, which is vital for maintaining a well-educated and capable force.