| HR 6097 | House | Nuclear Energy Research and Development Act | Bill | Died | 2020-03-12 |
| HR 6796 | House | Nuclear Energy for the Future Act | Bill | Died | 2020-05-08 |
| HR 6596 | House | To realign the nuclear forensics and attribution activities of the Federal Government from the Department of Homeland Security to the National Nuclear Security Administration. | Bill | Died | 2020-06-01 |
| HR 7405 | House | Strengthening American Nuclear Competitiveness Act | Bill | Died | 2020-06-29 |
| S 4099 | Senate | No Nuclear Testing Without Approval Act | Bill | Died | 2020-06-29 |
| HR 7406 | House | Nuclear Licensing Efficiency Act | Bill | Died | 2020-06-29 |
| HR 7613 | House | Energy and Water Development and Related Agencies Appropriations Act, 2021 | Bill | Died | 2020-07-15 |
| HR 7814 | House | Nuclear Prosperity and Security Act | Bill | Died | 2020-07-29 |
| HR 7817 | House | Modernize Nuclear Reactor Environmental Reviews Act | Bill | Died | 2020-07-29 |
| SRES 673 | Senate | A resolution affirming that the New START Treaty extension will cover new deployed Russian nuclear delivery systems, and supporting additional initiatives to engage China that advance the goal of concluding an arms control treaty or agreement. | Resolution | Died | 2020-08-06 |
| HR 8258 | House | Spent Nuclear Fuel Solutions Research and Development Act | Bill | Died | 2020-09-15 |
| HR 8296 | House | Nuclear Energy Reactor Demonstration Act | Bill | Died | 2020-09-17 |
| HR 8277 | House | Nuclear Plant Decommissioning Act of 2020 | Bill | Died | 2020-09-17 |
| HR 8342 | House | No Nuclear Testing Without Approval Act | Bill | Died | 2020-09-22 |
| HR 8355 | House | Next Generation Nuclear Advancement Act of 2020 | Bill | Died | 2020-09-23 |
| SRES 741 | Senate | A resolution designating October 30, 2020, as a national day of remembrance for the workers of the nuclear weapons program of the United States. | Resolution | Died | 2020-09-30 |
| HR 8572 | House | Securing America’s Nuclear Waste Act | Bill | Died | 2020-10-09 |
| S 4890 | Senate | Nuclear Plant Decommissioning Act of 2020 | Bill | Died | 2020-11-10 |
| HRES 1222 | House | Reaffirming the sense of the House of Representatives that the United States must lead the world in preventing further nuclear proliferation, while also reducing and eventually eliminating all nuclear weapons. | Resolution | Died | 2020-11-16 |
| HRES 825 | House | Urging the United States to continue to be a leader in supporting the Treaty on the Nonproliferation of Nuclear Weapons (NPT) and the global nonproliferation regime to reap the benefits the NPT and such regime bring to United States and international security. | Resolution | Died | 2020-11-18 |
| S 4897 | Senate | American Nuclear Infrastructure Act of 2020 | Bill | Died | 2020-12-02 |
| HR 9028 | House | To establish the American Nuclear Leadership Commission, and for other purposes. | Bill | Died | 2020-12-18 |
| HR 9015 | House | Preserving Existing Nuclear Energy Generation Act | Bill | Died | 2020-12-18 |
| HRES 54 | House | Reaffirming the sense of the House of Representatives that the United States must lead the world in preventing further nuclear proliferation, while also reducing and eventually eliminating all nuclear weapons. | Resolution | Died | 2021-01-21 |
| HR 464 | House | Nuclear Forensics Authority Realignment Act | Bill | Died | 2021-01-26 |
| HR 669 | House | Restricting First Use of Nuclear Weapons Act of 2021 | Bill | Died | 2021-02-01 |
| HR 1203 | House | Iran Nuclear Verification Act | Bill | Died | 2021-02-22 |
| SRES 72 | Senate | 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. | Resolution | Died | 2021-02-24 |
| HRES 157 | House | 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. | Resolution | Died | 2021-02-24 |
| HR 1351 | House | Nuclear Prosperity and Security Act | Bill | Died | 2021-02-26 |
| S 541 | Senate | Nuclear Waste Informed Consent Act | Bill | Died | 2021-03-02 |
| HR 1479 | House | Iran Nuclear Deal Advice and Consent Act of 2021 | Bill | Died | 2021-03-02 |
| HR 1524 | House | Nuclear Waste Informed Consent Act | Bill | Died | 2021-03-03 |
| HR 1554 | House | Nuclear SLCM Ban Act of 2021 | Bill | Died | 2021-03-03 |
| HR 1578 | House | Nuclear Licensing Efficiency Act | Bill | Died | 2021-03-04 |
| S 595 | Senate | Nuclear SLCM Ban Act of 2021 | Bill | Died | 2021-03-04 |
| HR 1559 | House | Modernize Nuclear Reactor Environmental Reviews Act | Bill | Died | 2021-03-04 |
| HR 1646 | House | International Nuclear Energy Financing Act of 2021 | Bill | Died | 2021-03-08 |
| HR 1698 | House | Nuclear Industrial Base Act | Bill | Died | 2021-03-10 |
| HRES 214 | House | Expressing the sense of the House of Representatives that Iran must cease enriching uranium to 20 percent purity and abandon its pursuit of a nuclear weapon. | Resolution | Died | 2021-03-10 |
| HR 1746 | House | Advanced Nuclear Deployment Act | Bill | Died | 2021-03-10 |
| HR 1748 | House | Strengthening American Nuclear Competitiveness Act | Bill | Died | 2021-03-11 |
| HR 2097 | House | STORE Nuclear Fuel Act of 2021 | Bill | Died | 2021-03-22 |
| S 1148 | Senate | Restricting First Use of Nuclear Weapons Act of 2021 | Bill | Died | 2021-04-15 |
| HR 2603 | House | To establish the policy of the United States regarding the no-first-use of nuclear weapons. | Bill | Died | 2021-04-15 |
| S 1219 | Senate | A bill to establish the policy of the United States regarding the no-first-use of nuclear weapons. | Bill | Died | 2021-04-19 |
| S 1205 | Senate | Iran Nuclear Deal Advice and Consent Act of 2021 | Bill | Died | 2021-04-19 |
| HR 2850 | House | Nuclear Weapons Abolition and Economic and Energy Conversion Act of 2021 | Bill | Died | 2021-04-26 |
| S 1862 | Senate | Smarter Approaches to Nuclear Expenditures Act | Bill | Died | 2021-05-26 |
| HR 3653 | House | Smarter Approaches to Nuclear Expenditures Act | Bill | Died | 2021-06-01 |