Worlds Measurement Equipment Stickers

Official tamperproof sticker placement at the 2016 Worlds. - see here

Also, make sure that if your boat was built AFTER 1/1/2010, it must have an official ISAF blue sticker on the stbd transom. If yours is missing, say, as the result of a respray following a repair, your association will have the official form to get a replacement - there is a fee to pay also.