(c) WRITTEN NOTICE OF CHANGE IN AMOUNT.—The 
Secretary of the Navy shall annually submit to Congress, 
at the same time as the budget is submitted under section 
1105(a) of title 31, United States Code, written notice of 
any change in the amount set forth in subsection (a) dur-
ing the preceding fiscal year that the Secretary has deter-
mined to be associated with a cost referred to in sub-
section (b). 
(d) LIMITATION
ON SHIPS
AND MISSION MOD-
ULES.—No funds available to the Navy may be used for 
the acquisition of Littoral Combat Ships, or Littoral Com-
bat Ship mission modules until the Secretary of Defense 
submits to the congressional defense committees—
(1) the results of an operational evaluation of 
the first four Littoral Combat Ships conducted by 
the Director of Operational Test and Evaluation 
Force of the Department of Defense; and 
(2) the Secretary’s certification in writing that 
there exists a stable design for the Littoral Combat 
Ship class of vessels. 
(e) STABLE DESIGN.—For purposes of this section, 
the design of a class of vessels shall be considered to be 
stable when no substantial change to the design is antici-
pated.
SEC. 125. AUTHORIZATION OF TWO ADDITIONAL ARLEIGH 
BURKE CLASS DESTROYERS. 
Of the amount provided in section 102(a)(4) for 
Shipbuilding and Conversion, Navy, for fiscal year 2006, 
the amount of $2,500,000,000 is available for construction 
of two additional Arleigh Burke class destroyers, to be 
constructed under a single contract which shall be com-
petitively awarded. 
SEC. 126. REFUELING AND COMPLEX OVERHAUL OF THE 
U.S.S. CARL VINSON. 
(a) AMOUNT AUTHORIZED FROM SCN ACCOUNT.—
Of the amount authorized to be appropriated by section 
102(a)(4), for fiscal year 2006, $1,493,563,000 is avail-
able for the commencement of the nuclear refueling and 
complex overhaul of the U.S.S. Carl Vinson (CVN–70). 
The amount made available in the preceding sentence is 
the first increment in the incremental funding planned for 
the nuclear refueling and complex overhaul of that vessel. 
(b) CONTRACT AUTHORITY.—The Secretary of the 
Navy may enter into a contract during fiscal year 2006 
for the nuclear refueling and complex overhaul of the 
U.S.S. Carl Vinson. 
(c) CONDITION
FOR OUT-YEAR CONTRACT PAY-
MENTS.—A contract entered into under subsection (b) 
shall provide that any obligation of the United States to 
make a payment under the contract for a fiscal year after
fiscal year 2006 is subject to the availability of appropria-
tions for that purpose for that later fiscal year. 
SEC. 127. REPORT ON PROPULSION SYSTEM ALTERNATIVES 
FOR SURFACE COMBATANTS. 
(a) REPORT REQUIRED.—The Secretary of the Navy 
shall submit to the congressional defense committees a re-
port on the results of the study directed by the Chief of 
Naval Operations and in progress in mid-2005 on alter-
native propulsion methods for surface combatant vessels 
of the Navy. The report shall be submitted not later than 
the date of the President’s submission of the budget of 
the United States Government for fiscal year 2007. 
(b) MATTERS TO BE INCLUDED.—The report of the 
Secretary of the Navy under subsection (a) shall include 
the following: 
(1) The objectives and scope of the study re-
ferred to in subsection (a) and the timeframes for 
analysis under the study and the key assumptions 
used in carrying out the study. 
(2) The methodology and analysis techniques 
used to conduct the study. 
(3) A description of current and future tech-
nology relating to propulsion that has been incor-
porated in recently-designed surface combatants or
is expected to be available within the next 10-to-20 
years. 
(4) The propulsion alternatives for surface com-
batants considered under the study and the analysis 
and evaluation under the study of each of those al-
ternatives from an operational and cost-effectiveness 
standpoint. 
(5) The conclusions and recommendations of 
the study, including those conclusions and rec-
ommendations that could impact the design of fu-
ture ships or lead to modifications of existing ships. 
(6) The Secretary’s intended actions and time-
frames for implementation, if any, of the findings 
and conclusions of the study. 
SEC. 128. AIRCRAFT CARRIER FORCE STRUCTURE. 
(a) REQUIREMENT FOR 12 OPERATIONAL AIRCRAFT 
CARRIERS WITHIN THE NAVY.—Section 5062 of title 10, 
United States Code, is amended—
(1) by redesignating subsections (b) and (c) as 
subsections (c) and (d), respectively; and 
(2) by inserting after subsection (a) the fol-
lowing new subsection (b): 
‘‘(b) The naval combat forces of the Navy shall in-
clude not less than 12 operational aircraft carriers. For 
purposes of this subsection, an operational aircraft carrier
includes an aircraft carrier that is temporarily unavailable 
for worldwide deployment due to routine or scheduled 
maintenance or repair.’’. 
(b) U.S.S. JOHN F. KENNEDY.—
(1) FULLY
MISSION
CAPABLE
STATUS.—The 
Secretary of Defense shall take all necessary actions 
to ensure that the U.S.S. John F. Kennedy (CVN–
67) is maintained in a fully mission capable status. 
(2) MAINTENANCE.—From the amounts pro-
vided under section 301 for operation and mainte-
nance of the Navy for fiscal year 2006, $60,000,000 
is authorized for the operation and routine mainte-
nance of the U.S.S. John F. Kennedy. 
SEC. 129. CONTINGENT TRANSFER OF ADDITIONAL FUNDS 
FOR CVN–21 CARRIER REPLACEMENT PRO-
GRAM. 
If the Director of Program Analysis and Evaluation 
of the Office of the Secretary of Defense certifies to Con-
gress that an additional amount of $86,700,000 for fiscal 
year 2006 for advance procurement for the CVN–21 Car-
rier Replacement Program would allow construction of the 
CVN–21 vessel to begin in fiscal year 2007, then upon 
such certification the amount of $86,700,000 shall, to the 
extent provided in advance in appropriations Acts, be 
transferred from amounts available for fiscal year 2006