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S. 4784 · 119th Congress

National Defense Authorization Act for Fiscal Year 2027

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IntroducedPassed one chamberPassed both chambersBecame law (gold)Resolution agreed to (full, dark)Failed or vetoed (gray)

Under the number: the Yea · Nay count of its final (or latest) recorded vote. On a member's page, the small badge is how that member voted: Y Yea / Aye, N Nay / No, P Present, – Not voting.

Gold and violet are only for Yea and Nay; they never mean a party. A member's party is the letter on their photo.

No cosponsors.

This bill sets forth policies and authorities for FY2027 for Department of Defense (DOD) programs, activities, and military construction as well as the national security programs of the Department of Energy (DOE).

What it does: CRS summary · Reported to Senate · Jun 15, 2026

National Defense Authorization Act for Fiscal Year 2027

This bill sets forth policies and authorities for FY2027 for Department of Defense (DOD) programs, activities, and military construction as well as the national security programs of the Department of Energy (DOE).

Among other elements, the bill

  • authorizes the procurement of various items, including aircraft and ships;
  • sets active duty and reserve component personnel strength levels;
  • sets policy regarding various aspects of military health care and military compensation;
  • sets policy regarding DOD acquisitions and acquisition management, including contracting authorities;
  • sets policy for various matters related to DOD interactions with foreign nations, including matters concerning the Middle East, Europe, and the Indo-Pacific;
  • sets policy for various matters related to DOD cyber operations, cyber forces, cybersecurity, and artificial intelligence;
  • requires DOD to review certain materials (including boron carbide, copper foil, and synthetic diamond) to determine actions to maintain access to critical defense industry components and materials, and report to Congress on such matters;
  • authorizes DOD's Office of Strategic Capital to make equity investments in non-federal entities with respect to batteries and critical minerals, materials, and chemicals;
  • authorizes specified military construction projects and extends the authorization of certain projects from previous fiscal years; and
  • authorizes the National Nuclear Security Administration and the Defense Nuclear Facilities Safety Board.

For additional information on the National Defense Authorization Act (NDAA) see

  • In Focus IF10516, Defense Primer: Navigating the NDAA, and
  • In Focus IF10515, Defense Primer: The NDAA Process.

Written by the nonpartisan Congressional Research Service. All summary versions on Congress.gov

About this bill and sources

Official title: National Defense Authorization Act for Fiscal Year 2027

Latest action (Jul 27, 2026): Motion to proceed to consideration of measure made in Senate. (CR S4276)

Policy area: Armed Forces and National Security · Origin: Senate · Introduced: Jun 15, 2026

Official page on Congress.gov · Bill text (GovInfo) · Status record (XML) · Embed in your story

Latest vote · Senate · Jul 14, 2026

Ending debate on taking up the measure (cloture) — Cloture on the Motion to Proceed Rejected. Vote details

Senate Majority Leader: John Thune

Table of every position
MemberParty at voteSeatPosition
Dan SullivanRAKYea
Lisa MurkowskiRAKYea
Katie BrittRALYea
Tommy TubervilleRALYea
John BoozmanRARYea
Tom CottonRARYea
Mark KellyDAZNay
Ruben GallegoDAZNay
Adam SchiffDCANay
Alex PadillaDCANot Voting
John HickenlooperDCONay
Michael BennetDCONay
Christopher MurphyDCTNay
Richard BlumenthalDCTNay
Christopher CoonsDDENay
Lisa Blunt RochesterDDENay
Ashley MoodyRFLYea
Rick ScottRFLYea
Jon OssoffDGANay
Raphael WarnockDGANay
Brian SchatzDHINay
Mazie HironoDHINay
Chuck GrassleyRIAYea
Joni ErnstRIAYea
James RischRIDYea
Mike CrapoRIDYea
Richard DurbinDILNay
Tammy DuckworthDILNay
Jim BanksRINYea
Todd YoungRINYea
Jerry MoranRKSYea
Roger MarshallRKSYea
Mitch McConnellRKYNot Voting
Rand PaulRKYYea
Bill CassidyRLAYea
John KennedyRLAYea
Ed MarkeyDMANay
Elizabeth WarrenDMANay
Angela AlsobrooksDMDNay
Chris Van HollenDMDNay
Angus KingIMENay
Susan CollinsRMEYea
Elissa SlotkinDMINay
Gary PetersDMINay
Amy KlobucharDMNNay
Tina SmithDMNNay
Eric SchmittRMOYea
Josh HawleyRMOYea
Cindy Hyde-SmithRMSYea
Roger WickerRMSYea
Steve DainesRMTYea
Tim SheehyRMTYea
Ted BuddRNCYea
Thom TillisRNCYea
John HoevenRNDYea
Kevin CramerRNDYea
Deb FischerRNEYea
Pete RickettsRNEYea
Jeanne ShaheenDNHNay
Maggie HassanDNHNay
Andy KimDNJNay
Cory BookerDNJNay
Ben LujánDNMNay
Martin HeinrichDNMNay
Catherine Cortez MastoDNVNay
Jacky RosenDNVNay
Chuck SchumerDNYNay
Kirsten GillibrandDNYNay
Bernie MorenoROHYea
Jon HustedROHYea
Alan ArmstrongROKYea
James LankfordROKYea
Jeff MerkleyDORNay
Ron WydenDORNay
Dave McCormickRPAYea
John FettermanDPANot Voting
Jack ReedDRINay
Sheldon WhitehouseDRINay
Darline Graham NordoneRSCYea
Tim ScottRSCYea
John ThuneRSDNay
Mike RoundsRSDYea
Bill HagertyRTNYea
Marsha BlackburnRTNYea
John CornynRTXYea
Ted CruzRTXYea
John CurtisRUTYea
Mike LeeRUTYea
Mark WarnerDVANay
Tim KaineDVANay
Bernie SandersIVTNay
Peter WelchDVTNay
Maria CantwellDWANay
Patty MurrayDWANay
Ron JohnsonRWIYea
Tammy BaldwinDWINay
Jim JusticeRWVNot Voting
Shelley CapitoRWVYea
Cynthia LummisRWYYea
John BarrassoRWYYea