---
kind: "unit"
title: "42"
title_heading: "The Public Health and Welfare"
key: "ch134/schVI/ptA"
level: "part"
label: "Part A"
heading: "Research, Development, Demonstration, and Commercial Application"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/ch134-schVI-ptA"
sections_count: 14
---

# Part A — Research, Development, Demonstration, and Commercial Application

Title 42 — The Public Health and Welfare › Chapter 134 — Energy Policy › Subchapter VI — Coal

## Sections

- [§13331. Coal research, development, demonstration, and commercial application programs](/usc/42/13331.md)
- [§13332. Coal-fired diesel engines](/usc/42/13332.md)
- [§13333. Clean coal, waste-to-energy](/usc/42/13333.md)
- [§13334. Nonfuel use of coal](/usc/42/13334.md)
- [§13335. Coal refinery program](/usc/42/13335.md)
- [§13336. Coalbed methane recovery](/usc/42/13336.md)
- [§13337. Metallurgical coal development](/usc/42/13337.md)
- [§13338. Utilization of coal wastes](/usc/42/13338.md)
- [§13339. Underground coal gasification](/usc/42/13339.md)
- [§13340. Low-rank coal research and development](/usc/42/13340.md)
- [§13341. Magnetohydrodynamics](/usc/42/13341.md)
- [§13342. Oil substitution through coal liquefaction](/usc/42/13342.md)
- [§13343. Authorization of appropriations](/usc/42/13343.md)
- [§13344. Rare earth elements](/usc/42/13344.md)