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.
Room
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.
Rule
The rules in this book, including the Definitions, Race Signals, Introduction, preambles and the rules of relevant appendices, but not titles;
World Sailing Regulations that have been designated by World Sailing as having the status of a rule and are published on the World Sailing website;
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;
the class rules (for a boat racing under a handicap or rating system, the rules of that system are 'class rules');
the notice of race;
the sailing instructions; and
any other documents that govern the event.
Sail the Course
A boat sails the course provided that a string representing her track from the time she begins to approach the starting line from its prestart side to start until she finishes, when drawn taut,
passes each mark of the course for the race on the required side and in the correct order,
touches each mark designated in the sailing instructions to be a rounding mark, and
passes between the marks of a gate from the direction of the course from the previous mark.
Start
A boat starts when, her hull 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 crosses the starting line from the pre-start side of the course side.
Support Person
Any person who
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
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.
Windward
See Leeward and Windward
Zone
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.