in this section as the
``security countermeasures program''), there is authorized to
be appropriated up to $5,593,000,000 for the fiscal years 2004
through 2013. Of the amounts appropriated under the preceding
sentence, not to exceed $3,418,000,000 may be obligated during
the fiscal years 2004 through 2008, of which not to exceed
$890,000,000 may be obligated during fiscal year 2004. None of
the funds made available under this subsection shall be used to
procure countermeasures to diagnose, mitigate, prevent, or
treat harm resulting from any naturally occurring infectious
disease or other public health threat that are not security
countermeasures under section 319F-2(c)(1)(B). \1\
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\1\ The last sentence in section 521(a) was added to reflect the
probable intent of Congress. Section 403(c) of Public Law 109-417 (120
Stat. 2874) provides as follows:

(c) Limitation on Use of Funds.--Section 510(a) of the Homeland
Security Act of 2002 (6 U.S.C. 320(a)) is amended by adding at the end
the following: ``None of the funds made available under this subsection
shall be used to procure countermeasures to diagnose, mitigate,
prevent, or treat harm resulting from any naturally occurring
infectious disease or other public health threat that are not security
countermeasures under section 319F-2(c)(1)(B).''.

Section 510 of the Homeland Security Act of 2002 was redesignated
as section 521 by section 611(7) of Public Law 109-295 (120 Stat.
1395).
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(b) Special Reserve Fund.--For purposes of the security
countermeasures program, the term ``special reserve fund''
means the ``Biodefense Countermeasures'' appropriations account
or any other appropriation made under subsection (a).
(c) Availability.--Amounts appropriated under subsection
(a) become available for a procurement under the security
countermeasures program only upon the approval by the President
of such availability for the procurement in accordance with
paragraph (6)(B) of such program.
(d) Related Authorizations of Appropriations.--
(1) Threat assessment capabilities.--For the
purpose of carrying out the responsibilities of the
Secretary for terror threat assessment under the
security countermeasures program, there are authorized
to be appropriated such sum