---
kind: "unit"
title: "42"
title_heading: "The Public Health and Welfare"
key: "ch6A/schXII/ptD"
level: "part"
label: "Part D"
heading: "Emergency Powers"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/ch6A-schXII-ptD"
sections_count: 5
---

# Part D — Emergency Powers

Title 42 — The Public Health and Welfare › Chapter 6A — Public Health Service › Subchapter XII — Safety of Public Water Systems

## Sections

- [§300i. Emergency powers](/usc/42/300i.md)
- [§300i–1. Tampering with public water systems](/usc/42/300i-1.md)
- [§300i–2. Community water system risk and resilience](/usc/42/300i-2.md)
- [§300i–3. Contaminant prevention, detection and response](/usc/42/300i-3.md)
- [§300i–4. Supply disruption prevention, detection and response](/usc/42/300i-4.md)