§ 320.2 - Criteria.

(a) The distance of a facility from the probable area of destruction is the controlling factor in reducing the risk of attack damage to such facility. In determining the appropriate distance consideration will be given to all relevant factors, including:

(1) The most likely objects or targets of enemy attack, such as certain military, industrial, population, and governmental concentrations.

(2) The size of such targets.

(3) The destructive power of a large yield weapon or weapons suitable to the particular target.

(4) The gradation of pressures and thermal radiation at various distances from an assumed point of detonation.

(5) The characteristics of the proposed facility, including underground and built-in protective construction features, with respect to its resistance to nuclear, chemical, and unconventional weapons.

(6) The degree of damage which a facility could sustain and still remain operable.

(7) The ground environment or natural barriers which might provide added protection to the facility.

(8) The economic, operational, and administrative requirements in carrying out the function for which the facility is to be provided.

(b) While no single distance standard and no single set of protective construction specifications against nuclear, chemical and unconventional weapons are feasible for all situations, the above factors will be applied so as to achieve the most protection practicable for a specific situation.