A term used as stated below is shown in italic type or, in preambles, in bold italic type. The meaning of several other terms is given in Terminology in the Introduction.

The space a boat needs in the existing conditions, including space to comply with her obligations under the rules of Part 2 and rule 31, while manoeuvring promptly in a seamanlike way.

  1. The rules in this book, including the Definitions, Race Signals, Introduction, preambles and the rules of relevant appendices, but not titles;
  2. World Sailing Advertising, Anti-Doping Code, Betting and Anti-Corruption Code, Disciplinary Code, Eligibility Code; Sailor Classification Code; and respectively Regulations 20, 21, 37, 35, 19 and 22;
  3. the prescriptions of the national authority, unless they are changed by the sailing instructions in compliance with the national authority's prescription, if any, to rule 88.2;
  4. the class rules (for a boat racing under a handicap or rating system, the rules of that system are 'class rules');
  5. the notice of race;
  6. the sailing instructions; and
  7. any other documents that govern the event.

A boat starts when, having been entirely on the pre-start side of the starting line at or after her starting signal, and having complied with rule 30.1 if it applies, any part of her hull, crew or equipment crosses the starting line in the direction of the first mark.

Support Person
Any person who
  1. provides, or may provide, physical or advisory support to a competitor, including any coach, trainer, manager, team staff, medic, paramedic or any other person working with, treating or assisting a competitor in or preparing for the competition, or
  2. is the parent or guardian of a competitor.

Tack, Starboard or Port
A boat is on the tack, starboard or port, corresponding to her windward side.

See Leeward and Windward

The area around a mark within a distance of three hull lengths of the boat nearer to it.  A boat is in the zone when any part of her hull is in the zone.

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