1. 2025-2028
  2. Rx: None

Case 11
Definition, Obstruction
Rule 14, Avoiding Contact
Rule 19.2(b), Room to Pass an Obstruction: Giving Room at an Obstruction
Rule 20.1, Room to Tack at an Obstruction: Hailing
Rule 43, Exoneration
When boats are overlapped at an obstruction, including an obstruction that is a right-of-way boat, the outside boat must give the inside boat room to pass between her and the obstruction.
Case 12
Definitions, Clear Astern and Clear Ahead; Overlap
Rule 11, On the Same Tack, Overlapped
Rule 14, Avoiding Contact
Rule 18.1, Mark-Room: When Rule 18 Applies
Rule 18.2(a)(1), Mark-Room: Giving Mark-Room
Rule 43, Exoneration
In determining the right of an inside boat to mark-room under rule 18.2(a)(1), it is irrelevant that boats are on widely differing courses, provided that an overlap exists when the first of them reaches the zone.
Case 13
Definitions, Proper Course
Rule 11, On the Same Tack, Overlapped
Rule 14, Avoiding Contact
Rule 15, Acquiring Right of Way
Rule 16.1, Changing Course
Rule 17, On the Same Tack; Proper Course
Rule 43.1(c), Exoneration
Before her starting signal, a leeward boat does not break a rule by sailing a course higher than the windward boat's course.
Case 14
Definitions, Proper Course
Rule 11, On the Same Tack, Overlapped
Rule 14, Avoiding Contact
Rule 16.1, Changing Course
Rule 17, On the Same Tack; Proper Course
Rule 43.1(c), Exoneration
When, because of a difference of opinion about a leeward boat’s proper course, two boats on the same tack converge, the windward boat must keep clear. Two boats on the same leg sailing near one another may have different proper courses. 
Case 15
Definitions, Mark-Room
Rule 12, On the Same Tack, Not Overlapped
Rule 13, While Tacking
Rule 18.1(a)(1), Mark-Room: When Rule 18 Applies
Rule 18.2(a)(2), Mark-Room: Giving Mark-Room
Rule 18.2(b), Mark-Room: Giving Mark-Room
In tacking to round a mark, a boat clear ahead must comply with rule 13; a boat clear astern is entitled to hold her course and thereby prevent the other from tacking.
Case 16
Deleted
Case 17
 Rule 13, While Tacking 
A boat is no longer subject to rule 13 when she is on a close-hauled course, regardless of her movement through the water or the sheeting of her sails.
Case 18
Deleted
Case 19
Part 2 Preamble
Rule 36(b), Races Restarted or Resailed
Rule 43.1(c), Exoneration
Rule 44.1(b), Penalties at the Time of an Incident: Taking a Penalty
Rule 60.2(c),  Protests: Intention to Protest 
Rule 60.4(c)(1),  Protests: Protest Validity 
Rule 60.5(d)(1),  Protests: Protest Decisions 
Rule 61.4(b)(2) & (3), Redress: Redress Decisions 
Rule 63.4(a)(2),  Conduct of Hearings: Hearing Procedure 
Interpretation of the term “damage”
Case 20
Rule 1.1, Safety: Helping Those in Danger
Rule 61.4(b)(4),  Redress: Redress Decisions 
When it is possible that a boat is in danger, another boat that gives help is entitled to redress, even if her help was not asked for or if it is later found that there was no danger.
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