H. R. 5515—522 
(1) SUBMISSION TO DOD.—Not later than 270 days after 
the date of the enactment of this Act, the federally funded 
research and development center shall submit to the Secretary 
a report containing the study conducted under subsection (a). 
Such report shall include the findings and recommendations 
of the center. 
(2) SUBMISSION TO CONGRESS.—Not later than 30 days after 
the date on which the Secretary receives the report under 
paragraph (1), the Secretary shall submit to the congressional 
defense committees such report, without change, and any com-
ments of the Secretary with respect to such report. 
(3) FORM.—The reports under paragraphs (1) and (2) shall 
be submitted in unclassified form, but may include a classified 
annex. 
SEC. 1670. EXTENSION OF ANNUAL REPORT ON PLAN FOR THE 
NUCLEAR WEAPONS STOCKPILE, NUCLEAR WEAPONS 
COMPLEX, NUCLEAR WEAPONS DELIVERY SYSTEMS, AND 
NUCLEAR WEAPONS COMMAND AND CONTROL SYSTEM. 
Section 1043 of the National Defense Authorization Act for 
Fiscal Year 2012 (Public Law 112–81; 125 Stat. 1576), as most 
recently amended by section 1665 of the National Defense 
Authorization Act for Fiscal Year 2018 (Public Law 115–91), is 
further amended in subsection (a)(1) by striking ‘‘2019’’ and 
inserting ‘‘2023’’. 
SEC. 1671. PLAN FOR ALIGNMENT OF ACQUISITION OF WARHEAD LIFE 
EXTENSION PROGRAMS AND DELIVERY VEHICLES FOR 
SUCH WARHEADS. 
Not later than February 15, 2019, the Chairman of the Nuclear 
Weapons Council established under section 179 of title 10, United 
States Code, shall submit to the congressional defense committees 
a plan containing a proposal for better aligning the acquisition 
of warhead life extension programs by the National Nuclear Secu-
rity Administration with the acquisition of the planned delivery 
vehicles for such warheads by the Department of Defense. 
SEC. 1672. ANNUAL REPORT ON DEVELOPMENT OF LONG-RANGE 
STAND-OFF WEAPON. 
(a) REPORT REQUIRED.—Not later than February 15, 2019, and 
annually thereafter until the date on which the long-range stand- 
off weapon receives Milestone B approval (as defined in section 
2366 of title 10, United States Code), the Secretary of the Air 
Force, in coordination with the Administrator for Nuclear Security 
and the Chairman of the Nuclear Weapons Council, shall submit 
to the congressional defense committees a report describing the 
joint development of the long-range stand-off weapon, including 
the missile developed by the Air Force and the W80–4 warhead 
life extension program conducted by the National Nuclear Security 
Administration. 
(b) ELEMENTS.—The report under subsection (a) shall include 
the following: 
(1) An estimate of the date on which the long-range stand- 
off weapon will reach initial operating capability. 
(2) A description of any development milestones for the 
missile developed by the Air Force or the warhead developed 
by the National Nuclear Security Administration that depend 
on corresponding progress at the other agency.
H. R. 5515—523 
(3) A description of coordination efforts between the Air 
Force and the National Nuclear Security Administration during 
the period covered by the report. 
(4) A description of any schedule delays projected by the 
Air Force or the National Nuclear Security Administration 
and the anticipated effect such delays would have on the 
schedule of work of the other agency. 
(5) Plans to mitigate the effects of any delays described 
in paragraph (4). 
(6) A description of any ways, including through the avail-
ability of additional funding or authorities, in which the 
development milestones described in paragraph (2) or the esti-
mated date of initial operating capability referred to in para-
graph (1), could be achieved more quickly. 
(7) An estimate of the acquisition costs for the long-range 
stand-off weapon. 
(c) FORM.—The report required by subsection (a) shall be sub-
mitted in unclassified form, but may include a classified annex. 
SEC. 1673. SENSE OF CONGRESS ON NUCLEAR POSTURE OF THE 
UNITED STATES. 
It is the sense of Congress that— 
(1) for more than 70 years the nuclear deterrent of the 
United States has played, and will continue to play, a central 
role in the national security of the United States and inter-
national stability; 
(2) strong, credible, and flexible nuclear forces of the United 
States deter aggression by adversaries and assure the allies 
of the United States that the extended deterrence commitments 
of the United States are steadfast; 
(3) the 2017 National Security Strategy, the 2018 National 
Defense Strategy, and the 2018 Nuclear Posture Review cor-
rectly assess changes in the security environment related to 
interstate strategic competition and recognize that the defense 
policies and posture of the United States, including those 
related to nuclear forces, must undergo measured adjustments; 
(4) the United States remains committed to, and will con-
tinue to honor, its full range of nuclear arms control and 
nonproliferation treaty obligations and seeks continued engage-
ment for prudent and verifiable agreements, however, the poli-
cies and actions of the United States must also hold states 
that violate such treaties accountable for such violations and 
take such violations into account when considering further 
arms control agreements; 
(5) the North Atlantic Treaty Organization (NATO) plays 
an essential role in the national security of the United States 
and NATO should continue to strengthen and align its nuclear 
and conventional deterrence posture, planning, and exercises 
to align with modern threats, including modernizing its dual- 
capable aircraft, command and control networks, nuclear- 
related facilities, and conventional capabilities; 
(6) the 2018 Nuclear Posture Review rightly states that 
the United States requires reliable, diverse, and tailorable 
nuclear forces capable of responding to a variety of current 
threats while preparing for future uncertainty and directs
H. R. 5515—524 
implementation of a comprehensive nuclear modernization pro-
gram at both the Department of Defense and the National 
Nuclear Security Administration; and 
(7) the Department of Defense and the National Nuclear 
Security Administration must integrate, partner, and organize 
themselves to successfully execute all aspects of the nuclear 
modernization program, including those regarding nuclear 
forces, warheads, infrastructure, command and control, and 
personnel. 
Subtitle E—Missile Defense Programs 
SEC. 1675. DEVELOPMENT OF PERSISTENT SPACE-BASED SENSOR 
ARCHITECTURE. 
(a) DEVELOPMENT REQUIRED.—Subsection (a) of section 1683 
of the National Defense Authorization Act for Fiscal Year 2018 
(Public Law 115–91; 10 U.S.C. 2431 note) is amended by striking 
‘‘If consistent with the direction or recommendations of the Ballistic 
Missile Defense Review that commenced in 2017, the Director of 
the Missile Defense Agency’’ and inserting ‘‘Subject to the avail-
ability of appropriations, beginning fiscal year 2019, the Director 
of the Missile Defense Agency, in coordination with the Commander 
of the Air Force Space Command and the Commander of the United 
States Strategic Command,’’. 
(b) COMPATIBILITY
WITH
EFFORTS
OF
DEFENSE
ADVANCED 
RESEARCH PROJECTS AGENCY.—Such section is amended— 
(1) by redesignating subsections (e) and (f) as subsections 
(g) and (h), respectively; and 
(2) by inserting after subsection (d) the following new sub-
section (e): 
‘‘(e) COMPATIBILITY WITH EFFORTS
OF DEFENSE ADVANCED 
RESEARCH PROJECTS AGENCY.—The Director shall ensure that the 
sensor architecture developed under subsection (a) is compatible 
with efforts of the Defense Advanced Research Projects Agency 
relating to space-based sensors for missile defense.’’. 
(c) REPORT ON USE OF OTHER AUTHORITIES.—Such section is 
further amended by inserting after subsection (e), as added by 
subsection (b) of this section, the following new subsection (f): 
‘‘(f) REPORT ON USE OF OTHER AUTHORITIES.—Not later than 
January 31, 2019, the Director shall submit to the appropriate 
congressional committees a report on the options available to the 
Director to use other transactional authorities pursuant to section 
2371 of title 10, United States Code, to accelerate the development 
and deployment of the sensor architecture required by subsection 
(a).’’. 
(d) PLAN.— 
(1) LIMITATION.—Of the funds authorized to be appro-
priated by this Act or otherwise made available for fiscal year 
2019 for the Department of Defense for the development of 
the space-based sensor architecture under subsection (a) of 
section 1683 of the National Defense Authorization Act for 
Fiscal Year 2018 (Public Law 115–91; 10 U.S.C. 2431 note), 
not more than 85 percent may be obligated or expended until 
the date on which the Director of the Missile Defense Agency 
submits the plan under subsection (g) of such section, as 
redesignated by subsection (b)(1) of this section.
H. R. 5515—525 
(2) CLARIFICATION
OF
ROLES.—Section 1683(g) of the 
National Defense Authorization Act for Fiscal Year 2018 (Public 
Law 115–91; 10 U.S.C. 2431 note), as redesignated by sub-
section (b)(1) of this section, is amended by striking ‘‘the 
Director shall submit’’ and inserting ‘‘the Director, in coordina-
tion with the Commander of the Air Force Space Command 
and the Commander of the United States Strategic Command, 
shall submit’’. 
SEC. 1676. BOOST PHASE BALLISTIC MISSILE DEFENSE. 
(a) DEVELOPMENT AND STUDY.—Section 1685 of the National 
Defense Authorization Act for Fiscal Year 2018 (Public Law 115– 
91; 10 U.S.C. 2431 note) is amended by adding at the end the 
following new subsections: 
‘‘(d) DEVELOPMENT.— 
‘‘(1) REQUIREMENT.—Subject to the availability of appro-
priations, beginning fiscal year 2019, the Director of the Missile 
Defense Agency shall carry out a program to develop boost 
phase intercept capabilities that— 
‘‘(A) are cost effective; 
‘‘(B) are air-launched, ship-based, or both; and 
‘‘(C) include kinetic interceptors. 
‘‘(2) PARTNERSHIPS.—In developing kinetic boost phase 
intercept capabilities under paragraph (1), the Director may 
enter into partnerships with the Ministry of National Defense 
of the Republic of Korea or the Ministry of Defense of Japan, 
or both. 
‘‘(e) INDEPENDENT STUDY.— 
‘‘(1) REQUIREMENT.—The Secretary of Defense shall seek 
to enter into an agreement with a federally funded research 
and development center to conduct a feasibility study on pro-
viding an initial or demonstrated boost phase capability using 
unmanned aerial vehicles and kinetic interceptors by December 
31, 2021. Such study shall include, at a minimum, a review 
of the study published by the Science, Technology, and National 
Security Working Group of the Massachusetts Institute of Tech-
nology in 2017 titled ‘Airborne Patrol to Destroy DPRK ICBMs 
in Powered Flight’. 
‘‘(2) SUBMISSION.—Not later than July 31, 2019, the Sec-
retary shall submit to the congressional defense committees 
the study conducted under paragraph (1).’’. 
(b) MODIFICATION TO SENSE OF CONGRESS.—Subsection (a) of 
such section is amended by striking ‘‘, if consistent with the direc-
tion or recommendations of the Ballistic Missile Defense Review 
that commenced in 2017’’. 
SEC. 
1677. 
EXTENSION 
OF 
REQUIREMENT 
FOR 
REPORTS 
ON 
UNFUNDED PRIORITIES OF MISSILE DEFENSE AGENCY. 
(a) IN
GENERAL.—Section 1696 of the National Defense 
Authorization Act for Fiscal Year 2017 (Public Law 114–328; 130 
Stat. 2638)— 
(1) is— 
(A) transferred to chapter 9 of title 10, United States 
Code; 
(B) inserted after section 222a; and 
(C) redesignated as section 222b; and 
(2) is amended—