• IMCA Rules (ISAF approved) - 1st March 2010 (PDF)
• The International Moth Class Association Constitution - August 2007 (PDF)
• IMCA Championship Guidelines - February 2003 (PDF - 70Kb)

• IMCA Measurement Form - Part 1 and 2 (PDF)
• IMCA Measurement Form - Part 1 and 2 (DOC)
• IMCA Measurement Form - Part 3 (XLS)
• IMCA Measurement Manual 2009

Download the official Moth symbol as prescribed in the IMCA rules and by ISAF:

• Corel Draw file
• Adobe Illustrator Version 8
• Adobe Illustrator Version 9

Dear IMCA Members,

Thank you for the prompt responses to your own national Presidents on the vote to amend the 2011 World Championships NOR and thus allow wingsails to be measured and compete; or not to amend the NOR.

The Presidents of all national associations have responded with the vote being 30 in favour of option 1 and 6 in favour of option 2.

We will therefore be proceeding with issuing an amendment to the NOR under the guidance of and with approval from ISAF. Chief Measurer Adam May is currently working with ISAF on the final text and I expect this to be released shortly.

Mark Robinson
President
International Moth Class Association

Dear National IMCA Presidents,

Applications for recognition of National IMCA status, together with proposed constitutions, have been received from Austria, Singapore and Spain. The IMCA Executive has reviewed the applications and hereby grants provisional membership to IMCA AUT, IMCA SIN and IMCA ESP to be formally ratified at the 2011 AGM.

The office bearers and contacts are:

IMCA AUT (Austria)

President: Nikolaus Liebscher
Secretary / Treasurer / Measurer: Doug Culnane
Constitution

IMCA SIN (Singapore)

President: James Cole
Secretary: Paul Runyan
Treasurer: Nick Wykeham-Martin
Constitution

IMCA ESP (Spain)

President: Pablo Arandia
Secretary: Alan Hillman
Treasurer: Simon Fisher
Constitution

Sincerely,
Chris Graham
IMCA Secretary

2009.06.10

Dear Moth Sailors,

As per the decision at the 2008 AGM, ISAF have now approved class rule changes in the following two areas, these rules are now in effect and thus will be valid for the 2009 European Championships in June and the 2009 World Championships in August.

The first rule change is that now boats that were first measured after 1 Jan 2005 can only carry sails measured to the new "true area" method.

Boats first measured prior to this date may continue to carry sails measured to the old method.

The second major rule change is that now it is legal to pump twice for each wave or gust or to promote foiling after each tack or gybe.

Repeated pumping as we have seen in some events is still illegal, as is any more than 2 pumps in an attempt to promote foiling in marginal conditions.

RRS 42 thus still applies and boats may be protested and/or disqualified for repeated pumping.

Regards,

Mark Robinson
IMCA President

• The summary of class rule changes can be found here
• The full current class rules can be found here here