There are many 420 events all over the world, from club events to national, regional championships to continental and onto World Championships.

Visit your national class association website for details of events within your country. The 420 Event Calendar contains more comprehensive information on the major 420 events around the world.

If you are going to your first major event, make sure you have all the relevant event documentation you will be required to present to the Organizing Committee, at registration and measurement.