The RCAF replaced the Air Board and the CAF as the regulator of Canadian civil aviation. In 1927 the management of aviation in Canada was reorganized so that the RCAF, now considered to be a military body, did not control civil flying. A new government branch, the "Civil Government Air Operations" (CGAO) Branch, was formed to manage air operations that supported civil departments. However, the RCAF administered the branch, and supplied almost all the aircraft and personnel. The RCAF continued to support the CGAO until the Department of Transport assumed responsibility for supporting civil departments or until these departments instituted their own flying services.