What section of the Code of Federal Regulations is significant for coal mine safety?

Title 30 - Part 77 of the Code of Federal Regulations is specifically significant for coal mine safety because it contains regulations that are tailored to ensure the health and safety of miners working in surface coal mines. This part focuses on various safety requirements including the use of equipment, the maintenance of safety systems, and the management of health hazards. The regulations aim to provide a safer working environment by addressing issues such as ground control, ventilation, and the handling of hazardous materials.

In contrast, other sections mentioned have different focuses. Title 29 - Part 1910 pertains to general industry standards which apply broadly to various sectors beyond just mining, particularly focusing on occupational safety and health. Title 40 - Part 123 is related to environmental protection regulations and would not directly address miner safety. Title 10 - Part 51 primarily deals with nuclear regulatory concerns, not applicable to coal mining safety. Therefore, Title 30 - Part 77 is the correct reference for ensuring compliance with safety standards specific to coal mining.