An interesting parallel to this is the work boats used on a huge construction project here in Scotland, where they had to be limited to a certain speed to be us

An interesting parallel to this is the work boats used on a huge construction project here in Scotland, where they had to be limited to a certain speed to be used as crew ferries. Above something like 18 knots they are classed as "high speed ferries" and the relatively slim paperwork turns into a fat wad of legalese. While it was possible to program the engine ECU to limit the power (and therefore speed), the operator deemed it legally safer and potentially less expensive to have the engines swapped with smaller ones, and store the original engines in one of the site warehouses.