Certified sails shall have an official International Cadet Class button or label (for example the well-known green button, left) fixed to the mainsail and headsail near the tack, and the spinnaker near the head, before the sail is certified.
Currently, started at the Cadet World Championship 2022 in Australia, the Class issues numbered, blue sail labels for new sails (a specimen is shown here). These sail labels are self adhesive—made from the same material as sail numbers—and should be stitched as well to avoid loss.
Sail labels can be obtained by sailmakers from the Secretariat at €20* apiece, the price of which is determined by the General Assembly (August 2017). Sail labels are not sold to individual sailors or parents.
Please read the Class Rules on the subject: G.2.3 ROYALTY LABEL OR BUTTON.
*) Excluding shipping costs.