The commission shall issue an order to authorize the placement of warning signs on contaminated property if no written consent has been obtained for such placement from the property owner. In nonemergency situations, an opportunity for a hearing on the placement of warning signs shall be afforded to the property owner in accordance with the contested case provisions of the Administrative Procedure and Texas Register Act, Texas Civil Statutes, Article 6252-13A, §13.
30 Tex. Admin. Code § 335.445