Executive Order 3066, issued by President Wilson on March 19, 1919, formally consolidated the BAP and DMA into the "Air Service, United States Army". Anticipating the order, Director of Air Service Maj. Gen. Charles Menoher undertook a sweeping re-organization on March 15, using the "divisional system" of the AEF as a model. Menoher created an advisory board representing the key branches of the Army, and appointed an Executive to coordinate policy between four groups, each headed by an Assistant Executive: Supply, Information, Training and Operations, and Administrative. With the signing of the Treaty of Versailles on June 28, 1919, President Wilson relinquished his war powers under the Overman Act, and on July 11 Congress granted legislative authority to continue the Air Service as a temporary independent branch of the War Department for another year, easing fears of airmen that the Air Service would be demobilized out of existence.