What are the two main categories of vehicles covered by AR 600-55?

The correct answer identifies the two main categories of vehicles covered by AR 600-55 as tactical and non-tactical vehicles. Tactical vehicles are those designed for combat or military operations, often equipped to withstand severe conditions or to enhance mobility on the battlefield. Non-tactical vehicles, on the other hand, are typically used for administrative, logistics, and general transportation purposes. Recognizing this distinction helps personnel understand the different regulations, operational capabilities, and maintenance needs associated with each vehicle type.

This understanding is crucial for ensuring proper training, safety, and compliance with Army standards, as each category has specific protocols and requirements under AR 600-55 to enhance operational readiness and vehicle management within the Army.