---
kind: "unit"
title: "42"
title_heading: "The Public Health and Welfare"
key: "ch71"
level: "chapter"
label: "Chapter 71"
heading: "Solar Energy"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/ch71"
sections_count: 23
---

# Chapter 71 — Solar Energy

Title 42 — The Public Health and Welfare

## Contents

- [Subchapter I — Heating and Cooling](/usc/42/ch71-schI.md)
- [Subchapter II — Research, Development, and Demonstration](/usc/42/ch71-schII.md)
- [Subchapter III — Solar Photovoltaic Energy Research, Development and Demonstration](/usc/42/ch71-schIII.md)