I'm not sure what you're asking here. If you mean do you need a license to charter (rent) a boat to go sailing, then depending on where you're located, probably not. The charter operator will want to ensure that you know how to handle the boat, but unless there is a state requirement for boater certification (which is becoming more common), no license is required. If you want to put your boat into a charter pool so someone else can charter it, then any licensing requirements would probably be handled by the charter operator. If you want to become a charter operator, then there would certainly be a number of hoops to jump through, and some sort of licensing would probably be required.
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