6 U.S. Code § 321h
6 U.S. Code § 321h is about Use of national private sector networks in emergency response. It is under Subchapter V (National Emergency Management) of Chapter 1 (Homeland Security Organization) of Title 6 (Domestic Security) of the Code.
To the maximum extent practicable, the Secretary shall use national private sector networks and infrastructure for emergency response to chemical, biological, radiological, nuclear, or explosive disasters, and other major disasters.