critical infrastructure
(3) the term “critical infrastructure” means systems and assets vital to national defense, national security, economic security, public health or safety including both regional and national infrastructure. Critical infrastructure may be publicly or privately owned; examples of critical infrastructure include gas and oil production, storage, or delivery systems, water supply systems, telecommunications networks, electrical power generation or delivery systems, financing and banking systems, emergency services (including medical, police, fire, and rescue services), and transportation systems and services (including highways, mass transit, airlines, and airports); and