Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
General Industry Safety Standards
Part 57 - OIL AND GAS DRILLING AND SERVICING OPERATIONS
Section R. 408.15713 - Safety belt, lifeline, and lanyard use

(1) An employee, when engaged in work 10 feet or more above the rig floor or other working surfaces, shall wear a safety belt or harness with an attached lanyard, except during rig up and rig down.

(2) A safety belt, safety harness and any lifeline and lanyard shall be used only for safeguarding the employee.

(3) A safety belt, safety harness, lifeline, or lanyard subjected to in-service shock loading, rather than static loading, shall be removed from service and shall not be used again for employee protection.

(4) When working in the mast or derrick, an employee shall be provided with safety belt or safety harness and a lanyard or lifeline which is adjusted to allow the minimum of drop in case of a fall.