Which of the following lists the authorized alterations to the frame and garrison caps?

The correct answer is that no alterations are authorized for frame and garrison caps. This regulation is in place to maintain uniformity, discipline, and a professional appearance within the Marine Corps. Ensuring that all Marines wear their headgear in a standard manner reflects the tradition and integrity of the Corps.

The established guidelines are clear in prohibiting alterations to these caps, emphasizing that deviations from the prescribed standard can undermine the uniform appearance that is crucial to military cohesion and identity. Consequently, allowing alterations could lead to inconsistencies and a lack of uniformity among Marines, which is against the core values and mandates of military service.