What is the primary system used for maintaining electronic service records in the military?

The primary system used for maintaining electronic service records in the military is the Navy Standard Integrated Personnel System (NSIPS). This system is designed to streamline personnel management and maintain various records, including service history, pay, and benefits for naval personnel. NSIPS integrates multiple functions related to personnel management in one platform, making it essential for tracking service records efficiently.

The other options, while related to specific aspects of military personnel management, do not serve the same comprehensive purpose. The Official Military Personnel File (OMPF) is indeed a critical document; however, it is part of the records maintained within the NSIPS system rather than being the primary system itself. Fitness Reports (FITREPS) and Physical Readiness Testing (PRT) are specific areas of evaluation and performance tracking but are subsets of the data managed under broader personnel systems, including NSIPS. Therefore, NSIPS stands out as the primary and essential system for maintaining comprehensive electronic service records in the military.