If the main propulsion of your vessel is mechanical, the facility in kW is indicated. In the case of the sailing boat, with or devoid of an auxiliary engine, PNM is stated. within the box a6: the abbreviation “JR” suggests: “leisure yacht”, the abbreviation “JK” signifies: “business yacht” - authorization https://boat-registration43197.blogsvila.com/28123800/facts-about-san-marino-yacht-registration-revealed