governmental function
(2) Governmental function .— The term “governmental function” means an activity undertaken by a government, such as national defense, intelligence missions, firefighting, search and rescue, law enforcement (including transport of prisoners, detainees, and illegal aliens), aeronautical research, biological or geological resource management (including data collection on civil aviation systems undergoing research, development, test, or evaluation at a test range (as such term is defined in section 44801 )), infrastructure inspections, or any other activity undertaken by a governmental entity that the Administrator determines is inherently governmental.