---
kind: "unit"
title: "10"
title_heading: "Energy"
key: "chII"
level: "chapter"
label: "Chapter II"
heading: "Department of Energy"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/10/chII"
sections_count: 1047
---

# Chapter II — Department of Energy

Title 10 C.F.R. — Energy

## Contents

- [Subchapter A — Oil](/cfr/10/chII-subchA.md)
- [Subchapter B — Climate Change](/cfr/10/chII-subchB.md)
- [Subchapter C — Subchapter C [reserved]](/cfr/10/chII-subchC.md)
- [Subchapter D — Energy Conservation](/cfr/10/chII-subchD.md)
- [Subchapter E — Alternate Fuels](/cfr/10/chII-subchE.md)
- [Subchapter G — Natural Gas (economic Regulatory Administration)](/cfr/10/chII-subchG.md)
- [Subchapter H — Assistance Regulations](/cfr/10/chII-subchH.md)
- [Subchapter I — Sales Regulation](/cfr/10/chII-subchI.md)