Jamborees are held once every four years, and are abbreviated as "NJ", or including the number of the event, as (for example) 14NJ for the 14th Nippon Jamboree.
The first postwar all-Japan camp held to celebrate the reorganization of the Boy Scouts of Japan was held September 24–25, 1949 in Tokyo.
Beginning with the fourth All-Japan Camporee, the name was changed to Nippon Jamboree.
Agoonorees are held once every four years, and are abbreviated as "NA", or including the number of the event, as (for example) 9NA for the 9th Nippon Agoonoree.
They are abbreviated as "NV", or including the number of the event, as (for example) 6NV for the 6th Nippon Venture.