As of my last knowledge update in September 2021, the ACU (Army Combat Uniform) was still authorized for use by the U.S. Army. However, uniform regulations and authorizations can change over time. To get the most current information, I recommend checking the latest updates from official U.S. Army sources, such as the U.S. Army G-1 (Office of the Deputy Chief of Staff) or other official publications and announcements.
Uniform regulations are subject to periodic updates based on factors such as functionality, safety, and evolving needs within the military. If there have been changes since my last update, it’s important to refer to the latest information to ensure compliance with current standards. Military personnel typically receive information about uniform changes through official channels, directives, or publications.