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Occupational Safety and Health Administration OSHA

Regulations (Standards - 29 CFR) - Table of Contents
• Part Number: 1910
• Part Title: Occupational Safety and Health Standards
• Subpart: T
• Subpart Title: Commercial Diving Operations
• Standard Number: 1910.427
• Title: Liveboating.
• GPO Source: e-CFR


General. Employers engaged in diving operations involving liveboating shall comply with the following requirements.


Limits. Diving operations involving liveboating shall not be conducted:


With an inwater decompression time of greater than 120 minutes;


Using surface-supplied air at depths deeper than 190 fsw, except that dives with bottom times of 30 minutes or less may be conducted to depths of 220 fsw;


Using mixed gas at depths greater than 220 fsw;


In rough seas which significantly impede diver mobility or work function; or


In other than daylight hours.




The propeller of the vessel shall be stopped before the diver enters or exits the water.



A device shall be used which minimizes the possibility of entanglement of the diver's hose in the propeller of the vessel.


Two-way voice communication between the designated person-in-charge and the person controlling the vessel shall be available while the diver is in the water.


A standby diver shall be available while a diver is in the water.


A diver-carried reserve breathing gas supply shall be carried by each diver engaged in liveboating operations.

Next Standard (1910.430)

Regulations (Standards - 29 CFR) - Table of Contents

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