@Robert P Tweed Thanks for feedback. My vision is starting with taxi/mass transit type vessels, but eventually open to individual vessels also. This concept would require all vessels on the water be zero-emission vessels. This way the water is protected.
@Alexander Hoffmann thanks! I’m not sure of any others, this was just an idea I came up with after a discussion with a friend. There may be other cities doing it, but none are doing it with a completely green solution. What is your role with this program?