N.C. Gen. Stat. § 130A-477

If it is determined that a public health threat may exist because of the contamination of property caused by a terrorist incident using nuclear, biological, or chemical agents, the State Health Director may order any action to abate that public health threat. To the extent that any owner, lessee, operator, or other person in control of the property is innocent of culpability in the creation of the public health threat, that person shall not be responsible for the costs of abating the public health threat.