On another web site someone opinioned that if Her Royal Highness is not granted an exemption, perhaps she could be operated in a foreign country such as on the Amazon or some other river in South America or the Rhine/Danube in Europe.
Does anyone know for sure if the boat could operate there or do those countries have similar laws to the US concerning combustible materials?
I know all the river boats I rode and saw on the Rhine, the Danube and the Rhone, none had wooden superstructures which leads me to think there is a law against them.