Which Army regulation outlines food safety and protection policies?

The correct answer is that AR 30-22 outlines food safety and protection policies within the Army. This regulation specifically addresses the management and oversight of food service operations, ensuring that food safety standards are upheld in various settings, including dining facilities and during food preparation. It provides guidance on the handling, preparation, and storage of food to prevent foodborne illnesses and ensure overall public health.

In the context of the other options, AR 20-1 pertains to the Army's assessment of organization and combat readiness; AR 40-3 focuses on medical services, particularly as they relate to food safety as a component of health, but it does not specifically outline the comprehensive food safety policies. Lastly, AR 770-1 deals with property accountability and does not address food service operations. Thus, AR 30-22 stands out as the dedicated regulation that comprehensively covers food safety and protection policies within the Army.