Criteria applying to all grades of events:

• Dates should be agreed with the ISAF office before 1 April of the current year (Southern Hemisphere) and 1 August of the preceding year (Northern Hemisphere) to avoid possible clashes (this will be strictly enforced in the case of World Championship Grade and Grade 1 events).
• The event shall be sailed broadly according to the principles applied in the current Olympic classes events format and shall be of a uniformly high standard.
• Unrestricted Category C advertising must apply for all graded events according to the ISAF Advertising Code 20.4.
• In principle the event shall be sailed in line with the sailing instructions laid out in Appendix K and KE of the RRS and the event should be organised according to the principles laid out in the ISAF Race Management Manual.
• Results shall be faxed or emailed to the ISAF office within 24 hours of the last race and be available on the International Class website or event organiser website which is linked to the Class website, in a format as stipulated by the ISAF, so that they can be entered into the Rankings.
• Organisers of all graded events must ensure the Internet World Wide Web publication of the daily results without delay using one of the following methods:

        - updating of the organiser's own webpages (hyperlinked on the ISAF regatta pages);
        - using the e-mail function of the ISAF Regatta Package (as soon as available);
        - e-mail transmission of HTML-edited results to the ISAF Editor (newseditor@isaf.co.uk);
        - e-mail transmission of result text files to the ISAF Editor (newseditor@isaf.co.uk).

• In restricted entry events at least the top three competitors on the appropriate class ranking list immediately prior to the event shall be entitled to enter. 
• High level of organisation on the water as well as on shore.

World Championship Grade

Olympic Regatta
ISAF World Windsurfing Championship
Olympic Class World Championships

Additional Criteria

• As per ISAF Regulations

Grade 1 events

Foremost all-Olympic classes events
Top level Continental Championships

Additional Criteria

• A maximum of three Grade 1 events may be held per continent, plus when appropriate a grade 1 Continental Championship
• 15 or more competitors from 3 nations in each class
• ISAF compliant Notice of Race (NoR) to be used and distributed six (6) months before event
• International Jury to be appointed and the Chairman shall be an International Judge, not from the host country
• In order to be entered into the rankings at least three (3) races must be completed in the series
• A well equipped press office should be available for the international press
• TV coverage should be encouraged
• Bow numbers, if used, should reflect competitors' positions on the World Sailing Rankings - The Official ISAF Rankings for Olympic Classes.

Grade 2 events

All-Olympic Class events
Continental Championships (other than those included as Grade 1)
International Olympic Class events

Additional Criteria

• A maximum of five Grade 2 events may be held per continent, plus when appropriate a grade 2 Continental Championship
• 15 or more competitors from at least 2 nations or 10 competitors from 3 nations.
• ISAF compliant Notice of Race (NoR) to be used and distributed six (6) months before event
• Where an International Jury cannot be established, the Chairman of the Protest Committee shall be an International Judge.

Grade 3 events

All-Olympic Class events
International Olympic Class events (other than those included as Grade 2)

Additional Criteria

• 10 or more competitors from at least 2 nations
• Standard notice of race to be used and distributed six (63) months before event
• Where an International Jury cannot be established, the Chairman of the Protest Committee shall be an International Judge.