A bill to amend the Safe Drinking Water Act and the Federal Water Pollution Control Act to establish or modify cybersecurity requirements for drinking water and wastewater systems, and for other purposes.

This bill—titled the Water Cyber Shield Act of 2026—amends the Safe Drinking Water Act and the Federal Water Pollution Control Act. Its primary purpose is to establish or update cybersecurity and physical risk requirements for drinking water and wastewater infrastructure across the country.

Based on the provided summary, the bill directly affects: * Community water systems (CWS) that provide drinking water. * Wastewater systems and public water infrastructure. *Note: The exact system size or population threshold for affected community water systems is not specified in the provided text due to an incomplete summary.*

* **Risk and Resilience Assessments:** Community water systems are required to assess their security risks—including cybersecurity threats—and evaluate the resilience of their infrastructure. * **Emergency Response Plans:** Systems must create or update emergency response plans based on the findings of their risk assessments. *(Further specific operational updates, deadlines, and agency rules are not detailed in the available text).*

The provided text does not contain details regarding specific funding amounts, grants, appropriations, taxes, or fees.

* **Incomplete Details:** Because the provided source text ends mid-sentence ("*Requires community water systems (CWS) serving...*"), specific exceptions, compliance deadlines, penalties for non-compliance, or system-size exemptions are not specified.

This bill mandates that community water and wastewater facilities evaluate their cybersecurity risks and maintain response plans to protect public water systems against threats, though complete specifics on compliance rules and funding are missing from the provided summary.