Which legislative action changed the name of the Air Service to the Army Air Corps on July 2, 1926?

The Air Corps Act, passed on July 2, 1926, was the significant legislative action that officially changed the name of the Air Service to the Army Air Corps. This act was instrumental in establishing a more structured organization for aviation within the U.S. Army and aimed to enhance the role of air power in military operations. It recognized the growing importance of air power and sought to help the military adapt to the evolving nature of warfare, where aviation was becoming increasingly critical.

The other options refer to different pieces of legislation that do not relate directly to this name change. The Air Force Reorganization Act was introduced much later and is associated with the establishment of the independent United States Air Force. The Military Aviation Advancement Act and the National Defense Authorization Act are also unrelated to the specific renaming of the Air Service to the Army Air Corps. These acts focus on various other aspects of military policy and funding rather than the specific nomenclature change that occurred in 1926.