Which document establishes range safety policies and responsibilities for firing various types of ammunition on Marine Corps and Army ranges?

The correct answer is C, as AR385-63 (Army Regulation 385-63) and MCO 3570.1 (Marine Corps Order 3570.1) collectively establish the range safety policies and responsibilities for handling various types of ammunition on Army and Marine Corps ranges. This comprehensive directive outlines safety procedures, risk management, and the specific roles and responsibilities of personnel during firing exercises.

Understanding the content of this document is crucial for ensuring that all operations on the range adhere to the established safety protocols, which help prevent accidents and enhance the overall safety of personnel involved in training. The integration of both Army and Marine Corps guidelines in this regulation highlights the importance of a standardized approach to range safety across the branches, thereby promoting interoperability and consistent training practices.

While other documents, such as a Standard Operating Procedure (SOP) or the USMC Range Safety Pocket Guide, may provide additional instructions or guidelines, they do not encompass the breadth of responsibilities and policies covered by AR385-63/MCO 3570.1, making this combined document the authoritative source for range safety in the context of firing various types of ammunition.