Sec. 38.160. RULES. The commissioner may adopt rules as necessary to administer this subchapter. Added by Acts 2011, 82nd Leg., R.S., Ch. 781 (H.B. 2038), Sec. 2, eff. June 17, 2011. SUBCHAPTER D-1. TREATMENT OF CONCUSSIONS AFFECTING STUDENTS OTHER THAN STUDENT ATHLETES