As used in this subchapter -
(1) the term "highly enriched uranium" means uranium enriched
to 20 percent or more in the isotope U-235;
(2) the term "IAEA" means the International Atomic Energy
Agency;
(3) the term "near real time material accountancy" means a
method of accounting for the location, quantity, and disposition
of special fissionable material at facilities that store or
process such material, in which verification of peaceful use is
continuously achieved by means of frequent physical inventories
and the use of in-process instrumentation;
(4) the term "special fissionable material" has the meaning
given that term by Article XX(1) of the Statute of the
International Atomic Energy Agency, done at the Headquarters of
the United Nations on October 26, 1956;
(5) the term "the Treaty" means the Treaty on the Non-
Proliferation of Nuclear Weapons, signed at Washington, London,
and Moscow on July 1, 1968; and
(6) the terms "IAEA safeguards", "non-nuclear-weapon state",
"nuclear explosive device", and "special nuclear material" have
the meanings given those terms in section 6305 of this title.