Texas Government Code - GOV'T § 437.057. Deputy Adjutants General

(a) A deputy adjutant general has the rank prescribed by the governor, not to exceed the grade authorized for federal recognition in the position. A deputy adjutant general may not be promoted to a rank higher than that of the adjutant general. A deputy adjutant general is entitled to the rights, privileges, amenities, and immunities granted officers of that rank in the Texas National Guard. A deputy adjutant general may be removed from office by the governor.

(b) A deputy adjutant general shall assist the adjutant general by performing assigned duties. If the adjutant general is dead, absent, or unable to act, the deputy adjutant general who is designated in the adjutant general's succession plan shall perform the duties of the adjutant general.

(c) Each deputy adjutant general must complete the training required of the adjutant general as prescribed by Section 437.056 not later than the 60th day after the date of appointment.