Tex. Government Code § 437.208: ORGANIZATION PROHIBITED.

(a) Except as provided by Subsection (b), a body of persons other than the regularly organized Texas military forces, the armed forces of the United States, or the active militia of another state may not associate as a military company or organization or parade in public with firearms in a municipality of the state.

(b) With the consent of the governor, students in an educational institution at which military science is a prescribed part of the course of instruction may drill and perform ceremonies with firearms in public. The governor may delegate the powers granted by this subsection to the adjutant general.

Added by Acts 2013, 83rd Leg., R.S., Ch. 1217 (S.B. 1536), Sec. 1.01, eff. September 1, 2013.