Section / Topic
Introduction General Principles for Umpire Decisions	G The Run
A Definitions and Fundamentals	H The Gybe Mark
B Prestart	J The Leeward Mark
C The Start	K The Finish
D Windward Leg	L Other Rules
E Windward Mark	M The Umpiring Process
F Reaching	Index of Rules (in Call Titles

Notes on the text

1. With the exception of certain calls in Section M, the calls assume that all flags, hails and signals (whether by competitors or umpires) have been made in accordance with the rules.
2. Some calls highlight important principles in the rules. For ease of reference, these clarifications are printed in italics at the end of the call.
3. Boat shading is used to differentiate between teams. Boats A, B, C are shaded grey and are on one team, and X, Y, Z are white and are on the other. A few calls show boats in colour when B will be blue, Y will be yellow and any third boat will be green; the text will identify team-mates. When only two boats are involved they will normally be named B and Y.
4. These calls apply to all team racing formats when Appendix D applies, regardless of the number of boats on each side. Only boats shown in a diagram or described in the text are involved in the incident; other boats in the race are not relevant to the call and are not shown.
5. When boats are already overlapped at position 1 in a call, the phrase 'Rule 17 does not apply to Y' is used to show that Y may sail above her proper course. The alternative is 'Y is subject to rule 17'.
6. Unless otherwise indicated, the wind is blowing from the top of the diagram.
7. The calls refer to 'umpires' making decisions. Whilst it is normal to have two umpires in an umpire boat, there is no requirement for this and the calls apply equally when there is only one umpire. When appendix D applies, the calls also apply at protest committee hearings; see World Sailing regulation 28.3.