What regulation outlines Ground Guide and Hand and Arm Signals?

The correct choice, TC 3-21.60, specifically addresses Ground Guide operations and Hand and Arm Signals in the context of military transportation and vehicle control. This training circular serves as a comprehensive guide for proper signaling techniques used by ground guides to ensure safety during vehicle maneuvering. It includes essential details on the types of signals, their meanings, and the standard practices for executing them, which are critical to maintaining safety and communication in crowded or dynamic environments.

The other choices, while related to military regulations and training, do not specifically cover the topics of Ground Guides or Hand and Arm Signals in the same focused manner as TC 3-21.60. By being dedicated to these particular themes, TC 3-21.60 is essential for soldiers responsible for vehicle operations, enhancing safety protocols and operational efficiency.