Which Army Regulation outlines the requirements for the Captain's Career Course?

The choice indicating that AR 350-1 outlines the requirements for the Captain's Career Course is correct because AR 350-1 specifically addresses Army training requirements, policy, and guidelines. This regulation encompasses the education and training of soldiers, which includes career courses designed for professional development, such as the Captain's Career Course. It lays the foundation for the leadership training and educational standards that captains must meet as they progress through their careers, thereby ensuring that they are well-prepared for their roles in the Army.

In contrast, the other options address different topics: AR 600-20 deals with Army command policy and includes sections on structure, chain of command, and the welfare of soldiers; AR 670-1 pertains to the wear and appearance of Army uniforms and insignia, focusing on proper military attire; while AR 500-1 discusses Army emergency management and related response policies. All these regulations serve important functions but do not specifically cover the training requirements relevant to the Captain's Career Course.