This United States Marine Corps USMC manual, Marine Corps Tactical Publication MCTP 3-30D Religious Ministry in the United States Marine Corps June 2023, provides a broad overview of religious ministry in the Marine Corps. It applies to any religious ministry team serving with Marines, including operational units at sea or on land, and those providing ministry on installations. The expectations outlined in this publication give commanders what they can anticipate from the chaplains, religious program specialists, and others who support the command religious program. It provides the necessary tools that can enhance the spiritual fitness and resilience of Marines, Sailors, families, and other authorized users.