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ering Discharge Station, Naval Reactors Facil-
ity, Idaho Falls, Idaho, $550,000.
SEC. 3102. DEFENSE ENVIRONMENTAL CLEANUP.
(a) AUTHORIZATION OF APPROPRIATIONS.—Funds are
hereby authorized to be appropriated to the Department of
Energy for fiscal year 2008 for defense environmental
cleanup activities in carrying out programs necessary for
national security in the amount of $5,410,905,000.
(b) AUTHORIZATION
FOR NEW PLANT PROJECT.—
From funds referred to in subsection (a) that are available
for carrying out plant projects, the Secretary of Energy
may carry out, for defense environmental cleanup activities,
the following new plant project:
Project 08–D–414, Project engineering and de-
sign, Plutonium Vitrification Facility, various loca-
tions, $15,000,000.
SEC. 3103. OTHER DEFENSE ACTIVITIES.
Funds are hereby authorized to be appropriated to the
Department of Energy for fiscal year 2008 for other defense
activities in carrying out programs necessary for national
security in the amount of $663,074,000.
SEC. 3104. DEFENSE NUCLEAR WASTE DISPOSAL.
Funds are hereby authorized to be appropriated to the
Department of Energy for fiscal year 2008 for defense nu-
clear waste disposal for payment to the Nuclear Waste Fund
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established in section 302(c) of the Nuclear Waste Policy
Act of 1982 (42 U.S.C. 10222(c)) in the amount of
$242,046,000.
Subtitle 
B—Program 
Authoriza-
tions, Restrictions, and Limita-
tions
SEC. 3111. RELIABLE REPLACEMENT WARHEAD PROGRAM.
(a) LIMITATION ON AVAILABILITY OF FUNDS.—Of the
amount authorized to be appropriated under section
3101(a)(1) for weapons activities for fiscal year 2008, not
more than $195,069,000 may be obligated or expended for
the Reliable Replacement Warhead program under section
4204a of the Atomic Energy Defense Act (50 U.S.C. 2524a).
(b) PROHIBITION ON AVAILABILITY OF FUNDS FOR
CERTAIN ACTIVITIES.—No funds referred to in subsection
(a) may be obligated or expended for activities under the
Reliable Replacement Warhead program beyond phase 2A
activities.
SEC. 3112. LIMITATION ON AVAILABILITY OF FUNDS FOR
FISSILE MATERIALS DISPOSITION PROGRAM.
(a) LIMITATION PENDING REPORT ON USE OF PRIOR
FISCAL YEAR FUNDS.—No fiscal year 2008 Fissile Mate-
rials Disposition program funds may be obligated or ex-
pended for the Fissile Materials Disposition program until
the Secretary of Energy, in consultation with the Adminis-
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trator for Nuclear Security, submits to the congressional de-
fense committees a report setting forth a plan for obligating
and expending funds made available for that program in
fiscal years before fiscal year 2008 that remain available
for obligation or expenditure as of October 1, 2007.
(b) LIMITATION PENDING CERTIFICATION ON USE OF
CURRENT FISCAL YEAR FUNDS.—
(1) IN
GENERAL.—Within fiscal year 2008
Fissile Materials Disposition program funds, the ag-
gregate amount that may be obligated for the Fissile
Materials Disposition program may not exceed such
amount as the Secretary, in consultation with the Ad-
ministrator, certifies to the congressional defense com-
mittees will be obligated for that program in fiscal
years 2008 and 2009.
(2) AVAILABILITY
OF
UNUTILIZED
FUNDS
AB-
SENT CERTIFICATION.—If the Secretary does not make
a certification under paragraph (1), fiscal year 2008
Fissile Materials Disposition program funds shall not
be available for the Fissile Materials Disposition pro-
gram, but shall be available instead for any defense
nuclear nonproliferation activities (other than the
Fissile Materials Disposition program) for which
amounts are authorized to be appropriated by section
3101(a)(2).