Before all this could happen, BuDocks had to address the dual command issue. Naval regs stated unit command was strictly limited to line officers. BuDocks deemed it essential that CBs be commanded by CEC officers trained in construction. The Bureau of Naval Personnel (BuPers) strongly opposed. Adm. Moreell took the issue directly to the Secretary of the Navy, Frank Knox. On 19 March 1942, Knox gave the CEC complete command of all NCF personnel. Almost 11,400 would become CEC during World War II with 7,960 doing CB service. Two weeks earlier, on 5 March all CB personnel were officially named "Seabees".