(a) The governor shall appoint and commission officers of the Texas National Guard. To be eligible for appointment, a service member must be qualified under United States law and regulations.
(b) The adjutant general shall appoint and commission officers, other than a general officer, in the Texas State Guard. To be eligible for appointment, a service member must be qualified under state guard regulations and be recommended for appointment by the commander of the state guard.
(c) An officer appointed under this section shall take and subscribe the official oath.