Sec. 490.003. RULES. The executive commissioner shall adopt rules necessary to administer this chapter. Added by Acts 2023, 88th Leg., R.S., Ch. 1082 (S.B. 773), Sec. 2, eff. June 18, 2023. SUBCHAPTER B. ACCESS TO INVESTIGATIONAL DRUGS, BIOLOGICAL PRODUCTS, AND DEVICES FOR PATIENTS WITH SEVERE CHRONIC DISEASES