Basically yes. eSurfboards are classified in Germany by the Wasserstraßenschifffahrtsamt (WSA) as a water motorcycle (jet ski) and must carry a license plate as soon as they have more than 2.21 kW (3 hp) of power. Other rules may apply to local waters. For example, eSurfboards are not allowed on Bavarian lakes and Lake Constance. In Austria the rules are not clear and in Switzerland motorized surfboards are not allowed.