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10 U.S.C. § 4321 — Development of major defense acquisition
Federal law — U.S. Code and appendices · legal_authorities
Page 2733
TITLE 10—ARMED FORCES
§ 4321
‘‘(1) measures to ensure competition, or the option
of competition, at both the prime contract level and
the subcontract level (at such tier or tiers as are ap-
propriate) of such program throughout the life-cycle
of such program as a means to improve contractor
performance; and
‘‘(2) adequate documentation of the rationale for
the selection of the subcontract tier or tiers under
paragraph (1).
‘‘(b) MEASURES TO ENSURE COMPETITION.—The meas-
ures to ensure competition, or the option of competi-
tion, for purposes of subsection (a)(1) may include
measures to achieve the following, in appropriate cases
if such measures are cost-effective:
‘‘(1) Competitive prototyping.
‘‘(2) Dual-sourcing.
‘‘(3) Unbundling of contracts.
‘‘(4) Funding of next-generation prototype systems
or subsystems.
‘‘(5) Use of modular, open architectures to enable
competition for upgrades.
‘‘(6) Use of build-to-print approaches to enable pro-
duction through multiple sources.
‘‘(7) Acquisition of complete technical data pack-
ages.
‘‘(8) Periodic competitions for subsystem upgrades.
‘‘(9) Licensing of additional suppliers.
‘‘(10) Periodic system or program reviews to address
long-term competitive effects of program decisions.
‘‘(c) ADDITIONAL MEASURES TO ENSURE COMPETITION
AT SUBCONTRACT LEVEL.—The Secretary shall take ac-
tions to ensure competition or the option of competi-
tion at the subcontract level on major defense acquisi-
tion programs by—
‘‘(1) where appropriate, breaking out a major sub-
system, conducting a separate competition for the
subsystem, and providing the subsystem to the prime
contractor as Government-furnished equipment;
‘‘(2) requiring prime contractors to give full and
fair consideration to qualified sources o
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Page 2733
TITLE 10—ARMED FORCES
§ 4321
‘‘(1) measures to ensure competition, or the option
of competition, at both the prime contract level and
the subcontract level (at such tier or tiers as are ap-
propriate) of such program throughout the life-cycle
of such program as a means to improve contractor
performance; and
‘‘(2) adequate documentation of the rationale for
the selection of the subcontract tier or tiers under
paragraph (1).
‘‘(b) MEASURES TO ENSURE COMPETITION.—The meas-
ures to ensure competition, or the option of competi-
tion, for purposes of subsection (a)(1) may include
measures to achieve the following, in appropriate cases
if such measures are cost-effective:
‘‘(1) Competitive prototyping.
‘‘(2) Dual-sourcing.
‘‘(3) Unbundling of contracts.
‘‘(4) Funding of next-generation prototype systems
or subsystems.
‘‘(5) Use of modular, open architectures to enable
competition for upgrades.
‘‘(6) Use of build-to-print approaches to enable pro-
duction through multiple sources.
‘‘(7) Acquisition of complete technical data pack-
ages.
‘‘(8) Periodic competitions for subsystem upgrades.
‘‘(9) Licensing of additional suppliers.
‘‘(10) Periodic system or program reviews to address
long-term competitive effects of program decisions.
‘‘(c) ADDITIONAL MEASURES TO ENSURE COMPETITION
AT SUBCONTRACT LEVEL.—The Secretary shall take ac-
tions to ensure competition or the option of competi-
tion at the subcontract level on major defense acquisi-
tion programs by—
‘‘(1) where appropriate, breaking out a major sub-
system, conducting a separate competition for the
subsystem, and providing the subsystem to the prime
contractor as Government-furnished equipment;
‘‘(2) requiring prime contractors to give full and
fair consideration to qualified sources other than the
prime contractor for the development or construction
of major subsystems and components of major weap-
on systems;
‘‘(3) providing for government surveillance of the
process by which prime contractors consider such
sources and determine whether to conduct such de-
velopment or construction in-house or through a sub-
contract; and
‘‘(4) providing for the assessment of the extent to
which a contractor has given full and fair consider-
ation to qualified sources other than the contractor
in sourcing decisions as a part of past performance
evaluations.
‘‘(d) CONSIDERATION
OF
COMPETITION
THROUGHOUT
MAINTENANCE AND SUSTAINMENT OF MAJOR WEAPON SYS-
TEMS AND SUBSYSTEMS.—Whenever a decision regarding
source of repair results in a plan to award a contract
for performance of maintenance and sustainment of a
major weapon system or subsystem of a major weapon
system, the Secretary shall take actions to ensure
that, to the maximum extent practicable and con-
sistent with statutory requirements, contracts for such
maintenance and sustainment, or for components need-
ed for such maintenance and sustainment, are awarded
on a competitive basis and give full consideration to all
sources (including sources that partner or subcontract
with public or private sector repair activities).
‘‘(e) APPLICABILITY.—
‘‘(1) STRATEGY AND MEASURES TO ENSURE COMPETI-
TION.—The requirements of subsections (a) and (b)
shall apply to any acquisition plan for a major de-
fense acquisition program that is developed or re-
vised on or after the date that is 60 days after the
date of the enactment of this Act [May 22, 2009].
‘‘(2) ADDITIONAL ACTIONS.—The actions required by
subsections (c) and (d) shall be taken within 180 days
after the date of the enactment of this Act.’’
PRESERVATION OF TOOLING FOR MAJOR DEFENSE
ACQUISITION PROGRAMS
Pub. L. 110–417, [div. A], title VIII, § 815, Oct. 14, 2008,
122 Stat. 4530, directed the Secretary of Defense to
issue, not later than 270 days after Oct. 14, 2008, guid-
ance requiring the preservation and storage of unique
tooling associated with the production of hardware for
a major defense acquisition program through the end of
the service life of the end item associated with such a
program.
DEFINITIONS
Pub. L. 111–23, § 2, May 22, 2009, 123 Stat. 1704, provided
that: ‘‘In this Act [see Short Title of 2009 Amendment
note set out under section 101 of this title]:
‘‘(1) The term ‘congressional defense committees’
has the meaning given that term in section 101(a)(16)
of title 10, United States Code.
‘‘(2) The term ‘major defense acquisition program’
has the meaning given that term in section 2430 of
title 10, United States Code [now 10 U.S.C. 4201].
‘‘(3) The term ‘major weapon system’ has the mean-
ing given that term in section 2379(d) [probably
means section 2379(f)] of title 10, United States Code
[now 10 U.S.C. 3455(f)].’’
§ 4321. Development of major defense acquisition
programs: sustainment of system to be re-
placed
(a) REQUIREMENT
FOR
SUSTAINING
EXISTING
FORCES.—(1) The Secretary of Defense shall re-
quire that, whenever a new major defense acqui-
sition program begins development, the defense
acquisition authority responsible for that pro-
gram shall develop a plan (to be known as a
‘‘sustainment plan’’) for the existing system
that the system under development is intended
to replace. Any such sustainment plan shall pro-
vide for an appropriate level of budgeting for
sustaining the existing system until the replace-
ment system to be developed under the major
defense acquisition program is fielded and as-
sumes the majority of responsibility for the mis-
sion of the existing system. This section does
not apply to a major defense acquisition that
reaches initial operational capability before Oc-
tober 1, 2008.
(2) In this section, the term ‘‘defense acquisi-
tion authority’’ means the Secretary of a mili-
tary department or the commander of the
United States Special Operations Command.
(b) SUSTAINMENT PLAN.—The Secretary of De-
fense shall require that each sustainment plan
under this section include, at a minimum, the
following:
(1) The milestone schedule for the develop-
ment of the major defense acquisition pro-
gram, including the scheduled dates for low-
rate initial production, initial operational ca-
pability, full-rate production, and full oper-
ational capability and the date as of when the
replacement system is scheduled to assume
the majority of responsibility for the mission
of the existing system.
(2) An analysis of the existing system to as-
sess the following:
(A) Anticipated funding levels necessary
to—
(i) ensure acceptable reliability and
availability rates for the existing system;
and
(ii) maintain mission capability of the
existing
system
against
the
relevant
threats.
(B) The extent to which it is necessary and
appropriate to—
Page 2734
TITLE 10—ARMED FORCES
§ 4323
(i) transfer mature technologies from the
new system or other systems to enhance
the mission capability of the existing sys-
tem against relevant threats; and
(ii) provide interoperability with the new
system during the period from initial field-
ing until the new system assumes the ma-
jority of responsibility for the mission of
the existing system.
(c) EXCEPTIONS.—Subsection (a) shall not
apply to a major defense acquisition program if
the Secretary of Defense determines that—
(1) the existing system is no longer relevant
to the mission;
(2) the mission has been eliminated;
(3) the mission has been consolidated with
another mission in such a manner that an-
other existing system can adequately meet the
mission requirements; or
(4) the duration of time until the new system
assumes the majority of responsibility for the
existing system’s mission is sufficiently short
so that mission availability, capability, inter-
operability, and force protection requirements
are maintained.
(d) WAIVER.—The Secretary of Defense may
waive the applicability of subsection (a) to a
major defense acquisition program if the Sec-
retary determines that, but for such a waiver,
the Department would be unable to meet na-
tional security objectives. Whenever the Sec-
retary makes such a determination and author-
izes such a waiver, the Secretary shall submit
notice of such waiver and of the Secretary’s de-
termination and the reasons therefor in writing
to the congressional defense committees.
(Added Pub. L. 108–375, div. A, title VIII,
§ 805(a)(1), Oct. 28, 2004, 118 Stat. 2008, § 2437; re-
numbered § 4321, Pub. L. 116–283, div. A, title
XVIII, § 1848(b), Jan. 1, 2021, 134 Stat. 4258.)
Editorial Notes
PRIOR PROVISIONS
A prior section 4321 was renumbered section 7421 of
this title.
AMENDMENTS
2021—Pub. L. 116–283 renumbered section 2437 of this
title as this section.
Statutory Notes and Related Subsidiaries
EFFECTIVE DATE OF 2021 AMENDMENT
Amendment by Pub. L. 116–283 effective Jan. 1, 2022,
with additional provisions for delayed implementation
and applicability of existing law, see section 1801(d) of
Pub. L. 116–283, set out as a note preceding section 3001
of this title.
EFFECTIVE DATE
Pub. L. 108–375, div. A, title VIII, § 805(b), Oct. 28, 2004,
118 Stat. 2009, provided that: ‘‘Section 2437 of title 10,
United States Code [now 10 U.S.C. 4321], as added by
subsection (a), shall apply with respect to a major de-
fense acquisition program for a system that is under
development as of the date of the enactment of this Act
[Oct. 28, 2004] and is not expected to reach initial oper-
ational capability before October 1, 2008. The Secretary
of Defense shall require that a sustainment plan under
that section be developed not later than one year after
the date of the enactment of this Act for the existing
system that the system under development is intended
to replace.’’
§ 4323. Sustainment reviews
(a) IN GENERAL.—The Secretary of each mili-
tary department shall conduct a sustainment re-
view of each covered system not later than five
years after declaration of initial operational ca-
pability of a major defense acquisition program,
and every five years thereafter throughout the
life cycle of the covered system, to assess the
product support strategy, performance, and op-
eration and support costs of the covered system.
The results of the sustainment review shall be
documented in a memorandum by the relevant
decision authority. The Secretary concerned
shall make the memorandum and supporting
documentation for each sustainment review
available to the Under Secretary of Defense for
Acquisition and Sustainment within 30 days
after the review is completed.
(b) ELEMENTS.—At a minimum, the review re-
quired under subsection (a) shall assess execu-
tion of the life cycle sustainment plan of the
covered system and include the following ele-
ments:
(1) An independent cost estimate for the re-
mainder of the life cycle of the program.
(2) A comparison of actual costs to the
amount of funds budgeted and appropriated in
the previous five years, and if funding short-
falls exist, an explanation of the implications
on equipment availability.
(3) A comparison between the assumed and
achieved system reliabilities.
(4) An analysis of the most cost-effective
source of repairs and maintenance.
(5) An evaluation of the cost of consumables
and depot-level repairables.
(6) An evaluation of the costs of information
technology, networks, computer hardware,
and software maintenance and upgrades.
(7) As applicable, an assessment of the ac-
tual fuel efficiencies compared to the pro-
jected fuel efficiencies as demonstrated in
tests or operations.
(8) As applicable, a comparison of actual
manpower requirements to previous estimates.
(9) An analysis of whether accurate and com-
plete data are being reported in the cost sys-
tems of the military department concerned,
and if deficiencies exist, a plan to update the
data and ensure accurate and complete data
are submitted in the future.
(10) As applicable, information regarding
any decision to restructure the life cycle
sustainment plan for a covered system or any
other action that will lead to critical oper-
ating and support cost growth.
(c) COORDINATION.—The review required under
subsection (a) shall be conducted in coordina-
tion with the requirements of sections 4324 and
4325 of this title.
(d) SUBMISSION
TO CONGRESS.—(1) Not later
than September 30 of each fiscal year, the Sec-
retary of each military department shall annu-
ally submit to the congressional defense com-
mittees the sustainment reviews required by
this section for such fiscal year.
(2) Each submission under paragraph (1) shall
be submitted in unclassified form, but may in-
clude a classified annex.
Cross-references
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Federal law — U.S. Code and appendices · legal_authorities
### Statutory Notes
Section, added Pub. L. 109–163, div. A, title VIII, § 803(a)(1), Jan. 6, 2006, 119 Stat. 3370, § 2379; amended Pub. L. 110–181, div. A, title VIII, § 815(a)(1), Jan. 28, 2008, 122 Stat. 222; Pub. L. 113–291, div. A, title X, § 1071(a)(7), Dec. 19, 2014, 128 Stat. 3504; Pub. L. 114–92, div. A, title VIII, § 852(a)–(d), Nov. 25, 2015, 129 Stat. 917, 918; Pub. L. 114–328, div. A, title VIII, § 872, Dec. 23, 2016, 130 Stat. 2307; Pub. L. 115–232, div. A, title VIII, § 836(d)(4), (8)(D), Aug. 13, 2018, 132 Stat. 1868, 1869; renumbered § 3455 and amended Pub. L. 116–283, div. A, title XVIII, §§ 1821(a)(2), (b)(4), 1831(j)(4), 1883(b)(2), Jan. 1, 2021, 134 Stat. 4195, 4217, 4294; Pub. L. 117–81, div. A, title XVII, § 1701(b)(10)(i)(ii), Dec. 27, 2021, 135 Stat. 2134; Pub. L. 117–263, div. A, title VIII, § 803, Dec. 23, 2022, 136 Stat. 2693, related to requirement for prior determination by Secretary of Defense and notification to Congress for the procurement of a major weapon system as a commercial product.
Source: Supplied U.S. Code snapshot — release unconfirmed · 10 U.S.C. § 3455
Stored review status: release_metadata_unconfirmed. The source passage cites 10 U.S.C. § 3455. This identifies an authority to review, not proof of applicability.
Federal law — U.S. Code and appendices · legal_authorities
Page 2491
TITLE 10—ARMED FORCES
§ 3455
of the National Defense Authorization Act for Fiscal
Year 2016 (Public Law 114–92; 10 U.S.C. 2377 note) to pro-
vide that—
‘‘(1) the head of an agency may not enter into a
contract in excess of $10,000,000 for facilities-related
services, knowledge-based services (except engineer-
ing services), construction services, medical services,
or transportation services that are not commercial
services unless the service acquisition executive of
the military department concerned, the head of the
Defense Agency concerned, the commander of the
combatant command concerned, or the Under Sec-
retary of Defense for Acquisition and Sustainment
(as applicable) determines in writing that no com-
mercial services are suitable to meet the agency’s
needs as provided in section 2377(c)(2) of title 10,
United States Code [now 10 U.S.C. 3453(c)(2)]; and
‘‘(2) the head of an agency may not enter into a
contract in an amount above the simplified acquisi-
tion threshold and below $10,000,000 for facilities-re-
lated services, knowledge-based services (except engi-
neering services), construction services, medical serv-
ices, or transportation services that are not commer-
cial services unless the contracting officer deter-
mines in writing that no commercial services are
suitable to meet the agency’s needs as provided in
section 2377(c)(2) of such title [now 10 U.S.C.
3453(c)(2)].’’
INCORPORATION INTO MANAGEMENT CERTIFICATION
TRAINING MANDATE
Pub. L. 114–92, div. A, title VIII, § 844(b), Nov. 25, 2015,
129 Stat. 915, provided that: ‘‘The Chairman of the Joint
Chiefs of Staff shall ensure that the requirements of
section 2377(d) of title 10, United States Code [now 10
U.S.C. 3453(e)], as added by subsection (a), are incor-
porated into
Source: Supplied 2024 U.S. Code historical extraction · 10 U.S.C. § 3455
Stored review status: historical_2024_not_currentness_verified. The source passage cites 10 U.S.C. § 3455. This identifies an authority to review, not proof of applicability.
Federal law — U.S. Code and appendices · legal_authorities
**(a) Definition.—** Except as provided under subsection (b), in this part, the term “major defense acquisition program” means a Department of Defense acquisition program that is not a highly sensitive classified program (as determined by the Secretary of Defense) and—
(1) that is designated by the Secretary of Defense as a major defense acquisition program; or
(2) in the case of a program that is not a program for the acquisition of an automated information system (either a product or a service), that is estimated by the Secretary of Defense to require—
(A) an eventual total expenditure for research, development, test, and evaluation of more than $1,000,000,000 (based on fiscal year 2024 constant dollars); or
(B) an eventual total expenditure for procurement, including all planned increments or spirals, of more than $4,500,000,000 (based on fiscal year 2024 constant dollars).
**(b) Exceptions.—** In this part, the term “major defense acquisition program” does not include the following:
(1) An acquisition program or project that is carried out using the rapid fielding or rapid prototyping acquisition pathway under [section 3602 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title10-section3602&num=0&edition=prelim).
(2) An acquisition program for a defense business system (as defined in [section 2222(i)(1) of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title10-section2222/i/1&num=0&edition=prelim)) carried out using the acquisition guidance issued pursuant to section 883(e) of the National Defense Authorization Act for Fiscal Year 2016 (Public Law 114–92; [10 U.S.C. 2223a](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title10-section2223a&num=0&edition=prelim) note).11 See References in
Source: Supplied U.S. Code snapshot — release unconfirmed · 10 U.S.C. § 4201
Stored review status: release_metadata_unconfirmed. The source passage cites 10 U.S.C. § 4201. This identifies an authority to review, not proof of applicability.
Federal law — U.S. Code and appendices · legal_authorities
Page 2694
TITLE 10—ARMED FORCES
§ 4201
Sec.
4204.
Milestone decision authority.
4205.
Weapon systems for which procurement fund-
ing requested in budget: development and
procurement schedules.
Editorial Notes
PRIOR PROVISIONS
A prior chapter 321 ‘‘RESEARCH AND DEVELOP-
MENT GENERALLY’’, consisting of reserved section
4201, was repealed by Pub. L. 116–283, div. A, title XVIII,
§ 1841(a)(1)(A), Jan. 1, 2021, 134 Stat. 4242.
Statutory Notes and Related Subsidiaries
ENHANCED DOMESTIC CONTENT REQUIREMENT FOR
MAJOR DEFENSE ACQUISITION PROGRAMS
Pub. L. 118–31, div. A, title VIII, § 835, Dec. 22, 2023, 137
Stat. 338, provided that:
‘‘(a) ASSESSMENT REQUIRED.—
‘‘(1) IN GENERAL.—Not later than one year after the
date of the enactment of this Act [Dec. 22, 2023], the
Secretary of Defense shall submit to the congres-
sional defense committees [Committees on Armed
Services and Appropriations of the Senate and the
House of Representatives] a report assessing the do-
mestic source content of procurements carried out in
connection with a major defense acquisition program.
‘‘(2) INFORMATION
REPOSITORY.—The Secretary of
Defense shall establish an information repository for
the collection and analysis of information related to
domestic source content for products the Secretary
deems critical, where such information can be used
for continuous data analysis and program manage-
ment activities.
‘‘(b) ENHANCED DOMESTIC CONTENT REQUIREMENT.—
‘‘(1) IN GENERAL.—Except as provided in paragraph
(2), for purposes of chapter 83 of title 41, United
States Code, manufactured articles, materials, or
supplies procured in connection with a major defense
acquisition program are manufactured substantially
all from articles, materials, or supplies mined, pro-
duced, or manufac
Source: Supplied 2024 U.S. Code historical extraction · 10 U.S.C. § 4201
Stored review status: historical_2024_not_currentness_verified. The source passage cites 10 U.S.C. § 4201. This identifies an authority to review, not proof of applicability.
Federal law — U.S. Code and appendices · legal_authorities
**(a) Requirement for Sustaining Existing Forces.—**
(1) The Secretary of Defense shall require that, whenever a new major defense acquisition program begins development, the defense acquisition authority responsible for that program shall develop a plan (to be known as a “sustainment plan”) for the existing system that the system under development is intended to replace. Any such sustainment plan shall provide for an appropriate level of budgeting for sustaining the existing system until the replacement system to be developed under the major defense acquisition program is fielded and assumes the majority of responsibility for the mission of the existing system. This section does not apply to a major defense acquisition that reaches initial operational capability before October 1, 2008.
(2) In this section, the term “defense acquisition authority” means the Secretary of a military department or the commander of the United States Special Operations Command.
**(b) Sustainment Plan.—** The Secretary of Defense shall require that each sustainment plan under this section include, at a minimum, the following:
(1) The milestone schedule for the development of the major defense acquisition program, including the scheduled dates for low-rate initial production, initial operational capability, full-rate production, and full operational capability and the date as of when the replacement system is scheduled to assume the majority of responsibility for the mission of the existing system.
(2) An analysis of the existing system to assess the following:
(A) Anticipated funding levels necessary to—
(i) ensure acceptable reliability and availability rates for the existing system; and
(ii) maintain mission capability of the existing system against the relevant threats.
Source: Supplied U.S. Code snapshot — release unconfirmed · 10 U.S.C. § 4321
Stored review status: release_metadata_unconfirmed. Same stored citation; legal effect and authority still require review.