In the early days of mining in the United States, the work was very dangerous. Miners faced the risk of explosions, and many had to work for long hours. US laws and policies made mining safer over time. This book focuses on laws and federal agencies that continue to protect miners' safety, health, and wages today. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.