On 24 January, 2011, the Marine Corps approved a Primary Military Occupational Specialty for enlisted MARSOC Marines who successfully completed ITC. Known as Critical Skills Operators, or CSO’s, MARSOC Marines would be able to continue serving at MARSOC throughout their career. That same announcement also created the Special Operations Capabilities Specialists (SOCS), the subject matter experts who provide unique support to MARSOC units. This announcement by the Marine Corps was critical in ensuring the continued growth and success of the Marine Special Operations Command.