Final answer:
The standard headgear authorized for wear with the Army Service Uniform (ASU) includes the garrison cap and the beret.
Step-by-step explanation:
- In the Army Service Uniform (ASU), the standard headgear authorized for wear is the garrison cap or the beret.
- The garrison cap is a foldable cap with a flat top and a stiff frame, worn with the ASU for formal occasions or in non-combat environments.
- The beret is a soft, round hat that is worn with the ASU for combat environments or when wearing the Army Combat Uniform (ACU) in everyday work situations.
Both the garrison cap and the beret are considered standard headgear and must be worn correctly according to Army Regulation 670-1.