Which system is used by Active Duty personnel?

The Electronic Military Personnel Office (eMILPO) is the system primarily utilized by Active Duty personnel. This online platform is designed to streamline personnel management processes, allowing for efficient tracking and reporting of personnel data within the Active Duty component. eMILPO facilitates various functions such as personnel actions, readiness reporting, and maintaining essential records, which are critical for managing the workforce effectively in a military context.

The other systems listed serve different purposes or components within the Army structure. SIDPERS is traditionally associated with the Reserve components and focuses on managing personnel for specific installations or divisions. RLAS is used primarily for managing personnel actions at the regional level but is not the primary system for Active Duty members. TPS is a system that supports tactical units but does not represent the overall personnel management needed for Active Duty forces.

Therefore, eMILPO is the appropriate choice for the management of Active Duty personnel records and actions.