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