As used in this chapter:
(a) "Emergency service" means the preparation for, and the carrying out of all emergency functions, other than functions for which the military forces are primarily responsible, for protection against and to minimize and repair injury and damage resulting from enemy attack, sabotage or other hostile action or from natural disaster.
(b) "Natural disaster" means any condition seriously affecting or threatening public health, welfare or security as a result of a severe fire, explosion, flood, tornado, hurricane or similar natural or accidental cause and which is beyond the control of public or private agencies ordinarily responsible for the control or relief of such conditions. Riots, strikes, insurrections or other civil disturbances are not included within the meaning of "natural disaster."
(c) "Emergency" means a condition resulting from an actual or threatened enemy attack or natural disaster, which cannot be handled by normal operating personnel and facilities.
(d) "Emergency service volunteer" means any person who serves without compensation in the civil defense organization.
(1975 Code Sec. 1.31)