Nuclear Policy Tracker
State Legislation & Regulatory Actions
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← Legislators

Cotton, Tom

Current

U.S. Senator · Republican · AR

Served 2013–present

(202) 224-2353326 Russell Senate Office Building Washington, DC 20510
Official website ↗

Committee Assignments

Joint Economic CommitteememberSenate Committee on Armed ServicesmemberSenate Committee on Energy and Natural ResourcesmemberSenate Select Committee on IntelligencechairAirlandmemberCybersecuritymemberEmerging Threats and CapabilitiesmemberEnergymemberPublic Lands, Forests, and MiningmemberStrategic Forcesmember

Legislative Activity

73 bills/resolutions

Bills and resolutions this member sponsored, cosponsored, or that were referred to a committee they sit on.

S 4495
Reactors at Risk Act of 2026
2026-05-12
Committee referralS 4284
Nuclear Energy Innovation and Deployment Act of 2026
2026-04-14
Committee referralS 4267
Strengthening American Nuclear Energy Act of 2026
2026-03-26
Cosponsor
SRES 651
A resolution honoring the USS Massachusetts (SSN-798) Virginia Class nuclear submarine and her crew on the historic occasion of her commissioning, on March 28, 2026.
2026-03-19
Committee referral
S 3106
No Nuclear Testing Without Approval Act
2025-11-05
Committee referralS 3090
No Nuclear Testing Act of 2025
2025-10-30
Committee referralS 3053
A bill to require a plan to modernize the nuclear security enterprise.
2025-10-23
Committee referralS 3016
Advancing Research in Nuclear Fuel Recycling Act of 2025
2025-10-16
Committee referralS 2930
Smarter Approaches to Nuclear Expenditures Act
2025-09-29
Committee referral
SRES 212
A resolution affirming the acceptable outcome of any nuclear deal between the United States and the Islamic Republic of Iran, and for other purposes.
2025-05-08
Cosponsor
S 5157
Advancing Research in Nuclear Fuel Recycling Act of 2024
2024-09-24
Committee referral
SRES 717
A resolution calling on the Biden Administration to pursue censure of Iran at the International Atomic Energy Agency (IAEA), refer the issue to the United Nations Security Council, and reaffirm that all measures will be taken to prevent the regime in Iran from acquiring nuclear weapons.
2024-06-03
Cosponsor
SRES 321
A resolution expressing the sense of the Senate relating to nuclear power and the commitment of the Senate to embracing and promoting nuclear power as a clean baseload energy source necessary to achieve a reliable, secure, and diversified electric grid.
2023-07-27
Committee referral
S 2017
Sentinel Nuclear Deterrence Act of 2023
2023-06-15
Committee referralS 1754
Smarter Approaches to Nuclear Expenditures Act
2023-05-30
Committee referralS 1394
Block Nuclear Launch by Autonomous Artificial Intelligence Act of 2023
2023-05-01
Committee referralS 1112
Department of Energy and Nuclear Regulatory Commission Whistleblower Protection Act
2023-03-30
Committee referralS 763
Reduce Russian Uranium Imports Act
2023-03-09
Committee referralS 571
A bill to require reports on the dangers posed by nuclear reactors in areas that might experience armed conflict.
2023-02-28
Committee referralS 472
Iran Nuclear Treaty Act
2023-02-16
CosponsorS 452
Nuclear Fuel Security Act of 2023
2023-02-15
Committee referralS 4066
Fueling Our Nuclear Future Act of 2022
2022-04-07
Committee referralS 3856
A bill to prohibit the importation of uranium from the Russian Federation.
2022-03-16
Committee referral
SJRES 40
A joint resolution formally apologizing for the nuclear legacy of the United States in the Republic of the Marshall Islands and affirming the importance of the free association between the Government of the United States and the Government of the Marshall Islands.
2022-03-01
Committee referral
S 3428
Fission for the Future Act
2021-12-16
Committee referralS 2896
Department of Energy and Nuclear Regulatory Commission Whistleblower Protection Act
2021-09-29
Committee referralS 2030
Iran Nuclear Treaty Act
2021-06-10
CosponsorS 1862
Smarter Approaches to Nuclear Expenditures Act
2021-05-26
Committee referral
SRES 72
A resolution opposing the lifting of sanctions imposed with respect to Iran without addressing the full scope of Iran's malign activities, including its nuclear program, ballistic and cruise missile capabilities, weapons proliferation, support for terrorism, hostage-taking, gross human rights violations, and other destabilizing activities.
2021-02-24
Sponsor
S 4099
No Nuclear Testing Without Approval Act
2020-06-29
Committee referralS 2727
Smarter Approaches to Nuclear Expenditures Act
2019-10-29
Committee referralS 2368
Nuclear Energy Renewal Act of 2019
2019-07-31
Committee referral
SRES 195
A resolution opposing the lifting of sanctions imposed with respect to Iran without addressing Iran's nuclear program, ballistic missile development, support for terrorism, and other destabilizing activities.
2019-05-08
Sponsor
S 1330
Department of Energy and Nuclear Regulatory Commission Whistleblower Protection Act of 2019
2019-05-06
Committee referralS 1234
Nuclear Waste Administration Act of 2019
2019-04-30
Committee referralS 903
Nuclear Energy Leadership Act
2019-03-27
Committee referralHR 1760
Advanced Nuclear Fuel Availability Act
2019-03-14
Committee referral
SRES 24
A resolution supporting a robust and modern ICBM force to maximize the value of the nuclear triad of the United States.
2019-01-17
Committee referral
S 3662
Stopping Russian Nuclear Aggression Act
2018-11-28
SponsorS 3422
Nuclear Energy Leadership Act
2018-09-06
Committee referralHR 6140
Advanced Nuclear Fuel Availability Act
2018-06-19
Committee referralS 2968
Department of Energy and Nuclear Regulatory Commission Whistleblower Protection Act of 2018
2018-05-24
Committee referralHR 4378
Nuclear Energy Research Infrastructure Act of 2018
2017-11-13
Committee referralS 1457
Advanced Nuclear Energy Technologies Act
2017-06-28
Committee referralS 1235
Smarter Approach to Nuclear Expenditures Act
2017-05-25
Committee referral
SCONRES 10
A concurrent resolution expressing the sense of Congress that the Secretary of the Navy should name the next nuclear powered submarine of the United States Navy the "USS Los Alamos".
2017-03-21
Committee referral
S 574
Nuclear Cruise Missile Reconsideration Act of 2017
2017-03-08
Committee referralS 430
Intermediate-Range Nuclear Forces (INF) Treaty Preservation Act of 2017
2017-02-16
SponsorS 332
A bill to restrict funding for the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, and for other purposes.
2017-02-07
SponsorS 97
Nuclear Energy Innovation Capabilities Act of 2017
2017-01-11
Committee referral
SRES 633
A resolution expressing the sense of the Senate on the plan of the Department of Defense and the Department of Energy for modernizing the nuclear weapons of the United States.
2016-12-09
Committee referral
S 3355
A bill to prohibit funding for the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization in the event the United Nations Security Council adopts a resolution that obligates the United States or affirms a purported obligation of the United States to refrain from actions that would run counter to the object and purpose of the Comprehensive Nuclear-Test-Ban Treaty.
2016-09-20
SponsorHR 4979
Advanced Nuclear Technology Development Act of 2016
2016-04-18
Committee referralS 2461
Nuclear Energy Innovation Capabilities Act
2016-01-21
Committee referralHR 4084
Nuclear Energy Innovation Capabilities Act
2015-11-19
Committee referralS 1825
Nuclear Waste Informed Consent Act
2015-07-22
Committee referralS 1428
Excess Uranium Transparency and Accountability Act
2015-05-21
Committee referralS 1363
A bill to require the Secretary of Energy to submit to Congress a report assessing the capability of the Department of Energy to authorize, host, and oversee privately funded fusion and fission reactor prototypes and related demonstration facilities at sites owned by the Department of Energy.
2015-05-18
Committee referralS 854
Nuclear Waste Administration Act of 2015
2015-03-24
Committee referralS 831
Smarter Approach to Nuclear Expenditures Act
2015-03-23
Committee referral
HCONRES 109
Expressing the sense of Congress relating to extending the interim agreement with the Government of Iran regarding its nuclear program.
2014-07-23
Cosponsor
HCONRES 94
Expressing the sense of Congress that the President should hold the Russian Federation accountable for being in material breach of its obligations under the Intermediate-Range Nuclear Forces Treaty.
2014-03-25
Cosponsor
S 2070
Smarter Approach to Nuclear Expenditures Act
2014-02-27
Committee referral
HRES 445
Urging the P5+1 to only accept a final nuclear agreement with Iran that definitively prevents Iran from acquiring a nuclear weapons capability, ceases Iran's construction of advanced missiles and warheads, suspends Iran's support for terrorist organizations, and reduces human rights violations within Iran.
2013-12-12
Cosponsor
S 1240
Nuclear Waste Administration Act of 2013
2013-06-27
Committee referralHR 2449
To authorize the President to extend the term of the Agreement for Cooperation between the Government of the United States of America and the Government of the Republic of Korea Concerning Civil Uses of Nuclear Energy for a period not to exceed March 19, 2016.
2013-06-20
Cosponsor
HRES 98
Expressing support for Israel and its right to self-defense against the illegal nuclear program by the Islamic Republic of Iran.
2013-03-05
Cosponsor
HR 850
Nuclear Iran Prevention Act of 2013
2013-02-27
CosponsorS 3469
Nuclear Waste Administration Act of 2012
2012-08-01
Committee referralS 2176
Nuclear Waste Fund Relief and Rebate Act
2012-03-08
Committee referralS 1067
Nuclear Energy Research Initiative Improvement Act of 2011
2011-05-25
Committee referralS 512
Nuclear Power 2021 Act
2011-03-08
Committee referralS 342
Republic of the Marshall Islands Supplemental Nuclear Compensation Act of 2011
2011-02-14
Committee referral

Voting Record

HR 1: On Passage of the Bill
2025-07-01
yea
HR 1: On the Motion
2025-07-01
nay
HR 1: On the Motion
2025-07-01
nay
HR 1: On the Motion
2025-07-01
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
yea
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Motion
2025-06-30
nay
HR 1: On the Decision of the Chair
2025-06-30
yea
HR 1: On the Motion to Proceed
2025-06-28
yea