What school must be completed by MECP appointees?

The correct answer is Officer Indoctrination School (OIS). MECP appointees, or those entering the Medical Enlisted Commissioning Program, are required to complete OIS as part of their transition from enlisted to officer. This school is designed specifically to indoctrinate newly commissioned officers into the Navy’s officer corps, providing essential training on military customs, leadership principles, and the responsibilities that come with the officer role. It serves as a foundational experience that helps appointees develop the necessary skills and mindset for effective leadership in military operations.

While the other choices may be related to different training programs or leadership courses, they do not serve the specific purpose mandated for MECP appointees. For instance, Military Education Training School (METS) and Command Leadership School (CLS) may focus on broader educational topics or specific leadership strategies relevant to various commands, but they are not mandatory for MECP appointees. The Advanced Officer Training Academy (AOTA) may offer advanced training for seasoned officers, but it does not replace the initial training provided by OIS that is critical for new officers.