NOTE: The information on this page is complementary to the IRC Rule text and does not remove any obligation to read and comply with the IRC Rules.
Measurement drawings *including guidance on measuring x and h (and when it is required) updated 25/1/18
ISAF Equipment Rules of Sailing (ERS) 2017-2020
Rules for Endorsement of IRC certificates (PDF) updated 2014
IRC worksheet (PDF) Print this and use it to collect the data for your application. Please do NOT use this as an application or input sheet!
IRC Measurement manual 2017 (PDF) published 6 Feb 2017
HULL and APPENDAGES
IRC weight & measurement input sheet (for official measurers) from 1/1/16 (Excel)
IRC Measurement Condition What needs to be aboard (or not) for measuring Boat Weight, Overhangs and Draft
IRC lead in keel fins. Full paper
Bulb Weight clarification of what is included
RIG and SAILS
Simple measurement guides - rig and sails *note at present these show pre-2016 abbreviations
Sail input sheet (for sailmakers and official measurers) from 1/1/16 (Excel)