Sec. 382.022.  INVESTIGATIONS.  The executive director may make or require the making of investigations:
(1)  that the executive director considers advisable in administering this chapter and the commission's rules, orders, and determinations, including investigations of violations and general air pollution problems or conditions;  or
(2)  as requested or directed by the commission.
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.  Amended by Acts 1995, 74th Leg., ch. 76, Sec. 11.149, eff. Sept. 1, 1995.