Instead of reinventing the wheel like most legislative bodies tend to do and avoid history, why not adopt the tried and true rule #6?
I actually feel safer on the intercoastal and where coastal jurisdiction. You don't need speed limits, no-wake, and tons of other laws that are at times difficult to enforce, and I have seen them not able to stand up in courts.
Talk to any LEO, Rule #6 will be easier to enforce and maintain.
https://www.law.cornell.edu/cfr/text...o%20account%3A