Title 42, The Public Health and WelfareRelease 119-110

§300g–10 Cybersecurity Support for Public Water Systems

Title 42 › CHAPTER 6A — PUBLIC HEALTH SERVICE › SUBCHAPTER XII — SAFETY OF PUBLIC WATER SYSTEMS › Part B — Public Water Systems › § 300g–10

Last updated Sep 22, 2026|Official source

Summary

Requires the Administrator, working with the Director of the Cybersecurity and Infrastructure Security Agency (CISA), to pick which public water systems are most important to protect from cyber attacks and to make a plan for offering voluntary technical help. Not later than 180 days after November 15, 2021, the Administrator must create a Prioritization Framework to find water systems (and their water sources) whose failure would seriously harm public health or safety. The Framework should, when possible, consider whether vulnerabilities were already found under section 300i–2, whether the system can fix problems without federal help, whether it serves a defense or national security site, and whether its failure would trigger other infrastructure failures. Not later than 270 days after November 15, 2021, the Administrator must make a Technical Cybersecurity Support Plan that sets how systems get prioritized, timelines for offering voluntary help, which systems may need help, and what supports may be used (for example, site assessments and penetration tests). The Administrator must consult other federal and nonfederal parties while making these documents. Defines a few terms in one line each: Appropriate Congressional committees (four named committees in the Senate and House), Director (head of CISA), Incident (as defined in 44 U.S.C. 3552), Prioritization Framework (the framework described above), and Support Plan (the Technical Cybersecurity Support Plan). The Administrator must send the Framework to the named congressional committees not later than 190 days after November 15, 2021, and must send the Support Plan and a list of systems identified as needing help not later than 280 days after November 15, 2021. Nothing in the law changes the Administrator’s existing powers or forces a water system to accept the offered help.

Full Legal Text

Title 42, §300g–10

The Public Health and Welfare, Source: USLM XML via OLRC

(a)Definitions
In this section: (1) Appropriate Congressional committees
(2)Director (3) Incident
The term “Director” means the Director of the Cybersecurity and Infrastructure Security Agency.
(4)Prioritization Framework
The term “Prioritization Framework” means the prioritization framework developed by the Administrator under subsection (b)(1)(A).
(5)Support Plan
The term “Support Plan” means the Technical Cybersecurity Support Plan developed by the Administrator under subsection (b)(2)(A).
(b)Identification of and support for public water systems
(1)Prioritization Framework
(A)In general
Not later than 180 days after November 15, 2021, the Administrator, in coordination with the Director, shall develop a prioritization framework to identify public water systems (including sources of water for those public water systems) that, if degraded or rendered inoperable due to an incident, would lead to significant impacts on the health and safety of the public.
(B)Considerations
In developing the Prioritization Framework, to the extent practicable, the Administrator shall incorporate consideration of— (i)
(ii)the capacity of a public water system to remediate a cybersecurity vulnerability without additional Federal support;
(iii)whether a public water system serves a defense installation or critical national security asset; and
(iv)whether a public water system, if degraded or rendered inoperable due to an incident, would cause a cascading failure of other critical infrastructure.
(2)Technical Cybersecurity Support Plan
(A)In general
Not later than 270 days after November 15, 2021, the Administrator, in coordination with the Director and using existing authorities of the Administrator and the Director for providing voluntary support to public water systems and the Prioritization Framework, shall develop a Technical Cybersecurity Support Plan for public water systems.
(B)Requirements
The Support Plan—
(i)shall establish a methodology for identifying specific public water systems for which cybersecurity support should be prioritized;
(ii)shall establish timelines for making voluntary technical support for cybersecurity available to specific public water systems;
(iii)may include public water systems identified by the Administrator, in coordination with the Director, as needing technical support for cybersecurity;
(iv)shall include specific capabilities of the Administrator and the Director that may be utilized to provide support to public water systems under the Support Plan, including—
(I)site vulnerability and risk assessments;
(II)penetration tests; and
(III)any additional support determined to be appropriate by the Administrator; and
(v)shall only include plans for providing voluntary support to public water systems.
(3)Consultation required
In developing the Prioritization Framework pursuant to paragraph (1) and the Support Plan pursuant to paragraph (2), the Administrator shall consult with such Federal or non-Federal entities as determined to be appropriate by the Administrator.
(4)Reports required
(A)Prioritization Framework
Not later than 190 days after November 15, 2021, the Administrator shall submit to the appropriate Congressional committees a report describing the Prioritization Framework.
(B)Technical Cybersecurity Support Plan
Not later than 280 days after November 15, 2021, the Administrator shall submit to the appropriate Congressional committees—
(i)the Support Plan; and
(ii)a list describing any public water systems identified by the Administrator, in coordination with the Director, as needing technical support for cybersecurity during the development of the Support Plan.
(c)Rules of construction
Nothing in this section
(1)
(2)compels a public water system to accept technical support offered by the Administrator.

Reference

Citations & Metadata

Citation

42 U.S.C. § 300g–10

Title 42, The Public Health and Welfare

Last Updated

Sep 22, 2026

Release point: 119-110