We could undertake to get that to this group.
As a partial answer to your question, there are typically three things that are expected of the industry from at least the board on the east coast: to have either full prevention and a remote vehicle system, or an acoustic system, or an automatic fail-safe system to operate the equipment down-hole. I'm not an expert on those things, but typically, at least one of those three things is intended to ensure that the equipment functions in the event of an incident.
If you need further technical information, we can undertake to provide that.