and (2) resulting from the operation by any person or organization of any nuclear facility included within the definition of nuclear facility under paragraph (a) or (b) thereof;

"nuclear facility" means

(a) any nuclear reactor,

(b) any equipment or device designed or used for (1) separating the isotopes of uranium or plutonium, (2) processing or utilizing spent fuel, or (3) handling, processing or packaging waste,

(c) any equipment or device used for the processing, fabricating or alloying of special nuclear material if at any time the total amount of such material in the custody of the insured at the premises where such equipment or device is located consists of or contains more than 25 grams of plutonium or uranium 233 or any combination thereof, or more than 250 grams of uranium 235,

(d) any structure, basin, excavation, premises or place prepared or used for the storage or disposal of waste,

and includes the site on which any of the foregoing is located, all operations conducted on such site and all premises used for such operations;

"nuclear reactor" means any apparatus designed or used to sustain nuclear fission in a self-supporting chain reaction or to contain a critical mass of fissionable material;

With respect to injury to or destruction of property, the word "injury" or "destruction" includes all forms of radioactive contamination of property.

(h) to any liability of the Insured directly or indirectly occasioned by, happening through or in consequence of war, invasion, acts of foreign enemies, hostilities, (whether war be declared or not), civil war, rebellion, revolution, insurrection, military or usurped power or confiscation or nationalization or requisition or destruction of or damage to property by or under the order of any government or public or local authority.

**CONDITIONS**

1. **Premium Computation**

The deposit premium stated in the declarations is an advance premium only unless otherwise specified. Upon termination of this policy, the earned premium shall be computed in accordance with the rates and minimum premium applicable to this insurance as stated in the Declarations. If the earned premium thus computed exceeds the advance premium paid, the Named Insured shall pay the excess to the Company; if less, the Company shall return to the Named Insured the unearned portion paid by such Insured. The Named Insured shall maintain records of the