85 GOVERNING RULES
The organizing authority, race committee and protest committee shall be governed by the rules in the conduct and judging of races.
86 RULE CHANGES
86.1 A racing rule may not be changed unless permitted in the rule itself or as follows:
(a) Prescriptions of a national authority may change a racing rule, but not the Definitions; a rule in the Introduction; Sportsmanship and the Rules; Part 1, 2 or 7; rule 43.1, 43.2, 69, 70, 71, 75, 76.2 or 79; a rule of an appendix that changes one of these rules; or Appendix G, J, K, L or Q.
(b) Sailing instructions may change a racing rule by referring specifically to it and stating the change, but not rule 76.1, Appendix F, or a rule listed in rule 86.1(a).
(c) Class rules may change only rules 42, 49, 50, 51, 52, 53 and 54.
86.2 If a national authority so prescribes, these restrictions do not apply if rules are changed to develop or test proposed rules in local races. The national authority may prescribe that its approval is required for such changes.
87 ORGANIZING AUTHORITY; NOTICE OF RACE; COMMITTEE
87.1 Organizing Authority
Races shall be organized by an organizing authority, which shall be
(a) the ISAF;
(b) a member national authority of the ISAF;
(c) a club or other organization affiliated to a national authority;
(d) a class association, either with the approval of a national authority or in conjunction with an affiliated club; or
(e) an unaffiliated body in conjunction with an affiliated club, except that in a major event designated by the ISAF, the unaffiliated body shall be owned and controlled by an affiliated club which shall have the approval of the relevant national authority.
87.2 Notice of Race; Appointment of Race Officials
The organizing authority shall publish a notice of race that conforms to rule M1, appoint a race committee and, when appropriate, appoint a jury. However, the race committee, an international jury and umpires may be appointed by the ISAF as provided by the ISAF regulations.
88 RACE COMMITTEE; SAILING INSTRUCTIONS;
88.1 Race Committee
The race committee shall conduct races as directed by the organizing authority and as required by the rules.
88.2 Sailing Instructions
(a) The race committee shall publish written sailing instructions that conform to rule M2.
(b) The sailing instructions for an international event shall include, in English, the applicable prescriptions of the national authority.
(c) Changes to the sailing instructions shall be in writing and posted within the required time on the official notice board or, on the water, communicated to each boat before her warning signal. Oral changes may be given only on the water, and only if the procedure is stated in the sailing instructions.
The race committee shall score a race or series by the scoring system specified in the sailing instructions.
89 PROTEST COMMITTEE
A protest committee shall be
(a) a committee appointed by the race committee;
(b) a jury, which is separate from and independent of the race committee; or
(c) an international jury meeting the requirements of Appendix Q. A national authority may prescribe that its approval is required for the appointment of international juries for events within its jurisdiction, except ISAF events or when international juries are appointed by the ISAF under rule 87.2.