• Subpart A [§ 77.1 - § 77.2] - Subpart A—General

• Subpart B [§ 77.100 - § 77.107-1] - Subpart B—Qualified and Certified Persons

• Subpart C [§ 77.200 - § 77.217] - Subpart C—Surface Installations

• Subpart D [§ 77.300 - § 77.315] - Subpart D—Thermal Dryers

• Subpart E [§ 77.400 - § 77.413] - Subpart E—Safeguards for Mechanical Equipment

• Subpart F [§ 77.500 - § 77.516] - Subpart F—Electrical Equipment—General

• Subpart G [§ 77.600 - § 77.606-1] - Subpart G—Trailing Cables

• Subpart H [§ 77.700 - § 77.705] - Subpart H—Grounding

• Subpart I [§ 77.800 - § 77.811] - Subpart I—Surface High-Voltage Distribution

• Subpart J [§ 77.900 - § 77.906] - and Medium-Voltage Alternating Current Circuits

• Subpart K [§ 77.1000 - § 77.1013] - Subpart K—Ground Control

• Subpart L [§ 77.1100 - § 77.1112] - Subpart L—Fire Protection

• Subpart M [§ 77.1200 - § 77.1202] - Subpart M—Maps

• Subpart N [§ 77.1300 - § 77.1304] - Subpart N—Explosives and Blasting

• Subpart O [§ 77.1400 - § 77.1438] - Subpart O—Personnel Hoisting

• Subpart P [§ 77.1500 - § 77.1505] - Subpart P—Auger Mining

• Subpart Q [§ 77.1600 - § 77.1608] - Subpart Q—Loading and Haulage

• Subpart R [§ 77.1700 - § 77.1713] - Subpart R—Miscellaneous

• Subpart S [§ 77.1800 - § 77.1802] - Subpart S—Trolley Wires and Trolley Feeder Wires

• Subpart T [§ 77.1900 - § 77.1916] - Subpart T—Slope and Shaft Sinking

• Subpart U - Subpart U—Approved Books and Records [Reserved]

• Subpart V [§ 77.2100 - § 77.2104] - Subpart V—Safety Program for Surface Mobile Equipment