NOTE: You are viewing the January 1, 2013 revision of The Rules of Flat Track Roller Derby, which is officially retired.
The current version of the rules can be found at Rules Central.
2.3.1 - The period begins when the designated Official blows the jam-starting whistle. The signal will be one short whistle blast.
2.3.3 - The period ends when the last jam reaches its natural conclusion (see Section 2.4 - Jams). This may extend past the point when the period clock reaches 0:00.
2.3.4 - If 30 seconds or fewer remain on the period clock when a jam ends, there will not be another jam started for that period unless a timeout is called (see Section 2.6.5).
©2012 Women’s Flat Track Derby Association (WFTDA). The Rules of Flat Track Roller Derby may not be reproduced or translated in whole or in part in any manner without the permission of the WFTDA.
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