''Operating at an excessive speed considering weather conditions, boat traffic, and other hazards. For inland waters, operating at a speed greater than 45 mph is considered negligent operation.''
''Operating at greater than headway speed (6 mph or less) within 150 feet of a swimmer, waterskier, mooring area, marina, boat launch, or when the operator's vision is obscured in any way.''
https://www.mass.gov/service-details...ng-law-summary
It takes a while... but it seems that the surrounding States are going toward the same restrictions. Most probably because the minority of the users that violate the rules often look for other outlets. So a problem that doesn't exist in an area, slowly becomes a problem... and then the rule gets adopted.