Rich Keller
Contributor
If by "oil rigging and docking divers" you mean commercial divers that dive surface supplied with communications you should post this in the commercial diver section here or in the help wanted section. I do not think any insurance company in their right mind would cover you for having amateur divers doing this on scuba. If you do find one then you still have the problem of communications unless you do what Cousteau did for his specials. If you have ever seen the ones where the divers are wearing motorcycle type helmets with a light built into the front and an antenna sticking out of the top and they are talking to each other, that was all dubbed in after. There were no communications built into the helmet and the antenna was just there for show. I am local if you have any questions that I can help you with let me know.