- In the definition Zone the distance is changed to two hull lengths.
- Rule 18.2(a) is changed to: - When the first of two boats reaches the zone- If boats are overlapped, the outside boat at that moment shall thereafter give the inside boat mark-room.
- If the boats are not overlapped, the boat thet has not reached the zone at that moment shall give the other boat mark-room.
 
 
If a boat passes head to wind and at that moment is 
clear astern of a boat in the zone, she shall give the 
clear ahead boat 
mark-room.
When a boat is required to give 
mark-room by this rule, she shall continue to do so for as long as this rule applies, even if later an 
overlap is broken or a new 
overlap begins.
d. When stated in the notice of race or sailing instructions, 
20.4 is changed so that the following arm signals are required in addition to the hails: 
(1) for "
room to tack", repeatedly and clearly pointing to windward; and
(2) for ‘You tack’, repeatedly and clearly pointing at the other boat and waving the arm to windward. 
e. Rule 
23.1 is changed to: ‘If reasonably possible, a boat not 
racing shall not interfere with a boat that is 
racing , and a boat that has 
finished shall not act to interfere with a boat that has not 
finished .
 f. Add new rule 
23.3: ‘When boats in different races meet, any change of course by either boat shall be consistent with complying with a 
rule or trying to win her own race.’
g. Add to rule 
41 (e) help from another boat on her team provided electronic communication is not used.