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S. 4728
U.S. Senate•In Senate Committee
Summary
S. 4728, the Combat Emerging Threats to Critical Infrastructure Act of 2026, was introduced in the Senate on Jun 10, 2026 by Sen. Mark Warner (D). It was referred to Homeland Security And Governmental Affairs, and last saw action on Jun 10, 2026: Read twice and referred to the Committee on Homeland Security and Governmental Affairs.
Record
Text
S. 4728 has no co-sponsors and has not gone to a roll call.
sb4728/introduced-in-senate.txt119 S4728 IS: Combat Emerging Threats to Critical Infrastructure Act of 2026U.S. Senate2026-06-10text/xmlENPursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.II 119th CONGRESS 2d Session S. 4728 IN THE SENATE OF THE UNITED STATES June 10, 2026 Mr. Warner introduced the following bill; which was read twice and referred to the Committee on Homeland Security and Governmental Affairs A BILLTo require the Director of the Cybersecurity and Infrastructure Security Agency to work with Sector Risk Management Agencies to update sector-specific plans, and for other purposes.1.Short titleThis Act may be cited as the Combat Emerging Threats to Critical Infrastructure Act of 2026 .2.DefinitionsIn this Act:(1)Artificial intelligenceThe term artificial intelligence has the meaning given that term in section 5002 of the National Artificial Intelligence Initiative Act of 2020 ( 15 U.S.C. 9401 ).(2)Digital assetThe term digital asset has the meaning given that term in section 2 of the GENIUS Act ( 12 U.S.C. 5901 ).(3)DirectorThe term Director means the Director of the Cybersecurity and Infrastructure Security Agency.(4)National Security Memorandum 22The term National Security Memorandum 22 means the National Security Memorandum on Critical Infrastructure and Resilience (NSM–22), issued April 30, 2024.(5)Sector Risk Management AgencyThe term Sector Risk Management Agency has the meaning given that term in section 2200 of the Homeland Security Act of 2002 ( 6 U.S.C. 650 ).3.Sector Risk Management Agency sector-specific plans(a)Update of sector-Specific plansNot later than 1 year after the date of enactment of this Act, the Director shall update the sector-specific plans for—(1)the Chemical Sector, as that term is used in National Security Memorandum 22;(2)the Commercial Facilities Sector, as that term is used in National Security Memorandum 22;(3)the Communications Sector, as that term is used in National Security Memorandum 22;(4)the Critical Manufacturing Sector, as that term is used in National Security Memorandum 22;(5)the Dams Sector, as that term is used in National Security Memorandum 22;(6)the Defense Industrial Base Sector, as that term is used in National Security Memorandum 22;(7)the Emergency Services Sector, as that term is used in National Security Memorandum 22;(8)the Energy Sector, as that term is used in National Security Memorandum 22;(9)the Financial Services Sector, as that term is used in National Security Memorandum 22;(10)the Food and Agriculture Sector, as that term is used in National Security Memorandum 22;(11)the Government Services and Facilities Sector, as that term is used in National Security Memorandum 22;(12)the Healthcare and Public Health Sector, as that term is used in National Security Memorandum 22;(13)the Information Technology Sector, as that term is used in National Security Memorandum 22;(14)the Nuclear Reactors, Materials, and Waste Sector, as that term is used in National Security Memorandum 22;(15)the Transportation Systems Sector, as that term is used in National Security Memorandum 22; and(16)the Water and Wastewater Sector, as that term is used in National Security Memorandum 22.(b)Technology-Facilitated threatsIn carrying out subsection (a)—(1)each sector-specific plan shall incorporate sector-specific risk management practices to address risks exacerbated or facilitated by disruptive technologies, such as artificial intelligence, including—(A)malicious activity, sabotage, or efforts to otherwise clandestinely degrade artificial intelligence systems or the supply chain of an artificial intelligence system, including training or test data, frameworks or software libraries, training or inference computing environments, or other components necessary for the training, management, or maintenance of an artificial intelligence system used by an owner or operator of critical infrastructure;(B)malicious activity leveraging artificial intelligence capabilities for computer network exploitation campaigns directed at the networks of owners and operators of critical infrastructure;(C)risks and mitigations associated with the deployment of cloud-based architecture, robotics, and zero trust principles (as defined in NIST Special Publication 800–207 or any successor publication);(D)evolving risks associated with social engineering techniques and digitally manipulated or digitally generated images, audio, video, or text documents; and(E)interagency and public-private information and threat intelligence sharing functions dependent on the organization, funding, and expertise of agencies (as defined in section 4101 of title 5, United States Code); and(2)with respect to the sector-specific plan for the Financial Services Sector pursuant to subsection (a)(9), the Director shall coordinate with the Secretary of the Treasury to develop a process to determine digital asset vulnerabilities relating to cryptographic risks resulting from quantum computing.(c)Interagency coordinationIn carrying out subsection (a), the Director shall coordinate with each relevant designated Sector Risk Management Agency.(d)Reports to CongressNot later than 30 days after the date on which the Director completes the update of the sector-specific plans required under subsection (a), the Director shall—(1)inform and provide a copy of each sector-specific plan to—(A)the Committee on Homeland Security and Governmental Affairs of the Senate ;(B)the Select Committee on Intelligence of the Senate ;(C)the Committee on Homeland Security of the House of Representatives ; and(D)the Permanent Select Committee on Intelligence of the House of Representatives ;(2)inform and provide a copy of the sector-specific plan for the Defense Industrial Base Sector updated pursuant to subsection (a)(6) to—(A)the Committee on Armed Services of the Senate ; and(B)the Committee on Armed Services of the House of Representatives ;(3)inform and provide a copy of the sector-specific plan for the Energy Sector updated pursuant to subsection (a)(8) to—(A)the Committee on Energy and Natural Resources of the Senate ; and(B)the Committee on Energy and Commerce of the House of Representatives ;(4)inform and provide a copy of the sector-specific plan for the Financial Services Sector updated pursuant to subsection (a)(9) to—(A)the Committee on Finance of the Senate ; and(B)the Committee on Financial Services of the House of Representatives ;(5)inform and provide a copy of the sector-specific plan for the Food and Agriculture Sector updated pursuant to subsection (a)(10) to—(A)the Committee on Agriculture, Nutrition, and Forestry of the Senate ;(B)the Committee on Health, Education, Labor, and Pensions of the Senate ;(C)the Committee on Finance of the Senate ;(D)the Committee on Agriculture of the House of Representatives ;(E)the Committee on Energy and Commerce of the House of Representatives ; and(F)the Committee on Ways and Means of the House of Representatives ;(6)inform and provide a copy of the sector-specific plan for the Government Services and Facilities Sector updated pursuant to subsection (a)(11) to—(A)the Committee on Environment and Public Works of the Senate ;(B)the Committee on Oversight and Government Reform of the House of Representatives ; and(C)the Committee on Transportation and Infrastructure of the House of Representatives ;(7)inform and provide a copy of the sector-specific plan for the Healthcare and Public Health Sector updated pursuant to subsection (a)(12) to—(A)the Committee on Health, Education, Labor, and Pensions of the Senate ;(B)the Committee on Finance of the Senate ;(C)the Committee on Energy and Commerce of the House of Representatives ; and(D)the Committee on Ways and Means of the House of Representatives ;(8)inform and provide a copy of the sector-specific plan for the Transportation Systems Sector updated pursuant to subsection (a)(15) to—(A)the Committee on Commerce, Science, and Transportation of the Senate ; and(B)the Committee on Transportation and Infrastructure of the House of Representatives ; and(9)inform and provide a copy of the sector-specific plan for the Water and Wastewater Sector updated pursuant to subsection (a)(16) to—(A)the Committee on Environment and Public Works of the Senate ; and(B)the Committee on Transportation and Infrastructure of the House of Representatives .4.Biennial reassessment(a)In generalNot later than 2 years after the date on which the Director completes the update of the sector-specific plans required under section 3(a), and not less frequently than once every 2 years thereafter, the Director shall—(1)conduct a reassessment of each sector-specific plan; and(2)issue revised sector-specific plans.(b)Notification to CongressNot later than 30 days after the date on which the Director completes each update of the sector-specific plans required under subsection (a), the Director shall inform and provide copies of each sector-specific plan to the relevant committees of Congress in the manner prescribed under section 3(d).
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2026-06-10
- Passed Senate
- Passed House
- Conference
- To President
- Became Law
A bill to require the Director of the Cybersecurity and Infrastructure Security Agency to work with Sector Risk Management Agencies to update sector-specific plans, and for other purposes.
Sponsors
Sen. Mark Warner (D) sponsors S. 4728 alone.
Committees
S. 4728 went before 1 committee: Homeland Security and Governmental Affairs.

Actions
S. 4728 has taken 2 actions since Jun 10, 2026.
| Chamber | Action | |||
|---|---|---|---|---|
Jun 10, 2026 | Senate | Read twice and referred to the Committee on Homeland Security and Governmental Affairs.Homeland Security and Governmental Affairs Committee | ||
Jun 10, 2026 | — | Introduced in Senate |
Votes
S. 4728 has not gone to a roll call.
Titles
S. 4728 goes by 3 titles, 1 of them short titles.
- Combat Emerging Threats to Critical Infrastructure Act of 2026 — Display Title
- Combat Emerging Threats to Critical Infrastructure Act of 2026 — Short Title(s) as Introduced
- A bill to require the Director of the Cybersecurity and Infrastructure Security Agency to work with Sector Risk Management Agencies to update sector-specific plans, and for other purposes. — Official Title as Introduced
Lobbying
6 clients hired 6 firms and 34 registered lobbyists who named S. 4728 in 6 quarterly filings, 2025 to 2026. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.
Filed under Taxation/Internal Revenue Code, Telecommunications, Budget/Appropriations, Consumer Issues/Safety/Products, Defense, Energy/Nuclear, Homeland Security, Science/Technology.
Clients
Who paid to be heard, by how many filings named the bill.
| Client | Business | State | Firms | Filings | Reported |
|---|---|---|---|---|---|
| BIOSTL | Organization of regional technology startups around medicine, healthcare, and agriculture | Missouri | 1 | 1 | $20K |
| ANTHROPIC | Anthropic is an AI safety and research company that builds frontier AI systems. | California | 1 | 1 | — |
| CTIA-THE WIRELESS ASSOCIATION | — | District of Columbia | 1 | 1 | — |
| EDISON INTERNATIONAL | — | District of Columbia | 1 | 1 | — |
| NATIONAL ASSOCIATION OF MUTUAL INSURANCE COMPANIES | — | District of Columbia | 1 | 1 | — |
| VERIZON COMMUNICATIONS INC AND VARIOUS SUBSIDIARIES | — | District of Columbia | 1 | 1 | — |
Firms
Registrants who filed on the bill, by filings.
| Registrant | Clients | Filings | Reported |
|---|---|---|---|
| ANTHROPIC | 1 | 1 | — |
| CTIA-THE WIRELESS ASSOCIATION | 1 | 1 | — |
| EDISON INTERNATIONAL | 1 | 1 | — |
| NATIONAL ASSOCIATION OF MUTUAL INSURANCE COMPANIES | 1 | 1 | — |
| VAN SCOYOC ASSOCIATES | 1 | 1 | $20K |
| VERIZON COMMUNICATIONS INC. AND VARIOUS SUBSIDIARIES | 1 | 1 | — |
Lobbyists
Named on the filings that cite the bill. The 20 named most often, of 34.
| Lobbyist | Firms | Clients | Filings |
|---|---|---|---|
| ANTHONY CIMINO | 1 | 1 | 1 |
| ANTHONY COTTO | 1 | 1 | 1 |
| BENJAMIN MERKEL | 1 | 1 | 1 |
| BRIAN PETERS | 1 | 1 | 1 |
| BROOKS BRUNSON-PITTS | 1 | 1 | 1 |
| CARLISLE CLARKE | 1 | 1 | 1 |
| CHLOE RODRIGUEZ | 1 | 1 | 1 |
| CHRIS MCNAMEE | 1 | 1 | 1 |
| CHRISTINA MASON | 1 | 1 | 1 |
| DANNY BUTHERUS | 1 | 1 | 1 |
| HANK KILGORE | 1 | 1 | 1 |
| JAMES GRANDE | 1 | 1 | 1 |
| JARED POWELL | 1 | 1 | 1 |
| JOSHUA LYNCH | 1 | 1 | 1 |
| JUSTIN MATURO | 1 | 1 | 1 |
| KATHERINE DUVENECK | 1 | 1 | 1 |
| KELLY COLE | 1 | 1 | 1 |
| LEAH GRAHAM | 1 | 1 | 1 |
| LESLEE GILBERT | 1 | 1 | 1 |
| MARCELA ZAMORA | 1 | 1 | 1 |
Filings
The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.
| Client | Registrant | Period | Reported | Document |
|---|---|---|---|---|
| CTIA-THE WIRELESS ASSOCIATION | CTIA-THE WIRELESS ASSOCIATION | 2026 second_quarter | $3.6M | 2nd Quarter - Report |
| VERIZON COMMUNICATIONS INC AND VARIOUS SUBSIDIARIES | VERIZON COMMUNICATIONS INC. AND VARIOUS SUBSIDIARIES | 2026 second_quarter | $3.1M | 2nd Quarter - Report |
| ANTHROPIC | ANTHROPIC | 2026 second_quarter | $2M | 2nd Quarter - Report |
| NATIONAL ASSOCIATION OF MUTUAL INSURANCE COMPANIES | NATIONAL ASSOCIATION OF MUTUAL INSURANCE COMPANIES | 2026 second_quarter | $540K | 2nd Quarter - Report |
| EDISON INTERNATIONAL | EDISON INTERNATIONAL | 2026 second_quarter | $290K | 2nd Quarter - Report |
| BIOSTL | VAN SCOYOC ASSOCIATES | 2025 first_quarter | $20K | 1st Quarter - Report |
Classification
The Congressional Research Service files S. 4728 under Government Operations and Politics, one of its 31 policy areas.
CRS Subjects
CRS assigns every bill one policy area from its 31; S. 4728’s is Government Operations and Politics.
s4728/policy-areas.txtSource: congress.gov · legiscan.com