Rules here.

ALL TEAMS ARE COED.
Eligibility/Age
IISC uses calendar years.  All age groups are calendar year.

UNDER 12'S are born in 2016-2015-2014-2013

UNDER 14'S are born 2012-2011

UNDER 18'S are born in 2010-2009-2008-2007

3. Age Group, Game Length

The Under 12 teams play 7v7: roster size 12, 20 minute halves
The Under 14 teams play 9v9: roster size 14, 20 minute halves
The Under 18 teams play 11v11: roster size 18, 25 minute halves