Friday, August 12, 2011

‎2.3.1 The period begins when the designated Official blows the first jam whistle. The signal will be one long whistle blast.

This is a pretty simple and straightforward rule that explains when the period, and thus the period clock, begins. In most cases, and certainly any WFTDA regulation and sanctioned games, the designated Official is the Jam Timer. However, in other games, another Official may be designated to start the jam, and even possibly another to start the Jammers. Thus, the rules don’t specify that the Jam Timer must start the period.

The signal of one long whistle blast is due to the fact that a jam starting whistle, according to 2.9 Whistles, is one long whistle blast.