What is the purpose of a "Marine Corps Bulletin" (MCB)?

The purpose of a "Marine Corps Bulletin" (MCB) is to disseminate information and policy updates to Marine Corps personnel. These bulletins serve as a formal communication tool within the Marine Corps to ensure that all personnel are informed about important changes in policies, procedures, or directives that impact their duties and responsibilities.

The dissemination of this information is crucial for maintaining operational readiness and unity within the Corps, as it ensures that everyone has access to the latest guidelines and updates. This mechanism fosters consistent understanding and application of policies across all levels of the organization.

While other options may involve aspects of Marine Corps communication, they do not encompass the primary and overarching function of an MCB, which is focused specifically on the distribution of broader informational and policy content.