(g) “Uranium enriched in the isotope 235 or 233” means uranium containing the isotope

235 or 233 or both in an amount such that the abundance ratio of the sum of these

isotopes to the isotope 238 is greater than the ratio of the isotope 235 to the isotope

238 occurring in nature;

(h) “BCN weapon” means:

(a) “biological weapons”, which are:

(i) microbial or other biological agents, or toxins whatever their origin or method

of production, of types and in quantities that have no justification for

prophylactic, protective or other peaceful purposes; or

(ii) weapons, equipment or means of delivery designed to use such agents or

toxins for hostile purposes or in armed conflict.

(b) “chemical weapons”, which are, together or separately:

(i) toxic chemicals and their precursors, except where intended for:

(A) industrial, agricultural, research, medical, pharmaceutical or other peaceful

purposes; or

(B) protective purposes, namely those purposes directly related to protection

against toxic chemicals and to protection against chemical weapons; or

(C) military purposes not connected with the use of chemical weapons and not

dependent on the use of the toxic properties of chemicals as a method of

warfare; or

(D) law enforcement including domestic riot control purposes,

as long as the types and quantities are consistent with such purposes;

(ii) munitions and devices specifically designed to cause death or other harm

through the toxic properties of those toxic chemicals specified in subparagraph

(b)(i), which would be released as a result of the employment of such

munitions and devices;

(iii) any equipment specifically designed for use directly in connection with the

employment of munitions and devices specified in subparagraph (b)(ii).

(c) nuclear weapons and other nuclear explosive devices.

(i) “Precursor” means any chemical reactant which takes part at any stage in the

production by whatever method of a toxic chemical. This includes any key component

of a binary or multicomponent chemical system;

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