30 C.F.R. § 57.14207 Parking procedures for unattended equipment.
Title 30 - Mineral Resources
Mobile equipment shall not be left unattended unless the controls are placed in the park position and the parking brake, if provided, is set. When parked on a grade, the wheels or tracks of mobile equipment shall be either chocked or turned into a bank or rib.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart M—Machinery and Equipment
Safety Practices and Operational Procedures
§ 57.14207 Parking procedures for unattended equipment.
