What is the National Guard's database of record for personnel?

The correct choice for the National Guard's database of record for personnel is SIDPERS, which stands for Standard Installation/Division Personnel System. This system serves as the official repository for personnel data, specifically tailored to manage personnel records, including assignments, promotions, and various other administrative details pertinent to the National Guard.

SIDPERS is designed to support the unique structure and needs of National Guard units, ensuring that accurate personnel information is readily available for management and deployment purposes. It plays a critical role in maintaining the integrity and accessibility of personnel data across different levels of command within the National Guard.

While the other options listed are related to military personnel management, they serve different functions. TAADS focuses on the planning and management of Army resources for deployments, eMILPO aims to facilitate electronic submissions of personnel actions and is primarily aimed at the active Army, and RLAS is utilized for specific regional applications rather than serving as the primary personnel data repository. Thus, SIDPERS stands out as the authoritative system for the National Guard's personnel records.